Another financial crisis is still possible, according to International Monetary Chief Christine Lagarde. She was commenting on a statement by US Federal Reserve Chair Janet Yellen, who predicted she would not see another financial crisis in her lifetime.

"There may, one day, be another crisis. I plan on having a long life, and I hope she (Yellen) does, too, so I wouldn't absolutely bet on that because there are cycles that we have seen over the past decade and I wouldn't exclude that," Lagarde told CNBC on Tuesday.

She said that crises are usually unpredictable and come unexpectedly.

"Where it will come from, what form it takes, how international and broad-based it will be is to be seen, and typically the crisis never comes from where we expect it," Lagarde said.

"Our duty ... is to make sure that your financial sector is under good supervision, that it's well regulated, that the institutions are rock-solid, and anticipate at home with enough buffers so that you can resist the potential crisis," she added.

The previous global financial crisis took place in 2007-2008 and is considered the biggest economic downturn since the Great Depression.

It happened after the crash in the US housing market, and massive amounts of mortgage-backed securities and derivatives lost significant value. In the US alone, more than 7.5 million people lost their jobs. According to estimates, American households lost roughly $16 trillion in net worth as a result of the stock market plunge.

House Republicans on the appropriations committee are ready to deliver their down payment for President Donald Trump's border wall. They will take the fight to the Democrats, potentially sparking a government shutdown in the fall.

President Trump made a point during the presidential campaign in 2016 of saying that he would build a wall on the southern US border and make Mexico pay for it. The committee released a homeland security bill on Tuesday which includes $1.6 billion to set aside for the border wall. This matches the president's request of funds to pay for the construction, Politico reported.

The legislation may not advance far enough, however, if Senate Democrats have anything to do with it. They vowed to block a similar attempt earlier this year. But Trump and his director of the Office of Management and Budget, Mick Mulvaney, have stated that they will not let up on this fight.

Small amounts of radioactive material being transported incorrectly has led to the firing of several employees after an incident at the Los Alamos National Laboratory, the prominent facility that specializes in nuclear weapons.

Last month, federal regulators launched an investigation into the lab after small amounts of nuclear materials were shipped by air, instead of by ground, as they were intended to be. They were [not] supposed to be sent to facilities in California and South Carolina aboard a commercial cargo plane. Air transport of these materials is not allowed due to US regulations, according to a press release by the National Nuclear Security Administration.

The laboratory has said it will not comply with requests to provide any details about the mistakes of its employees in connection to last month's error and have said that everyone involved in the mishap has been held to account for their actions, according to the Associated Press.

The lab has transferred the duties related to certain nuclear shipments to another division in the wake of the accident. They have also created more controls for the making of shipment labels.

A spokesman for Los Alamos said

"the lab is putting into place laboratory-wide measures to significantly reduce the likelihood of similar events occurring," the Albuquerque Journal reported.

The lab also said in a statement that

"although these shipments arrived safely at their destinations and no one was hurt, this mistake, taken together with other mistakes in recent years, is unacceptable and is in the process of being addressed promptly and thoroughly." They went on to say "our response to this incident is not business as usual," the AP reported.

Six volunteer fighters, two from the US and one from the UK, were killed in Syria while fighting alongside Kurdish forces to retake the city of Raqqa from Islamic State.

On Tuesday, the Kurdish People's Protection Units (YPG) press office announced the deaths of Nicholas Warden, 29, from New York; Luke Rutter, 24, from Birkenhead; and Robert Grodt, 28, from California, referring to them as "martyrs."

"Comrades Demhat, Rodi and Soro, like all their other comrades, joined the fight to end Daesh's barbarity and sacrificed themselves for a common and free life for all peoples," the statement from the YPG said, referring to the men by their Kurdish names. "As the YPG, we renew our vows to our comrades and promise that we will stay true to their memories and crown the revolution with victory."

YPG fighters said that Warden and Rutter were both killed on July 5, "during the big campaign to liberate Raqqa from the terrorism of IS," according to the BBC. Grodt died the next day from injuries sustained in the fight, according to the Guardian.

WikiLeaks founder Julian Assange tweeted he advised Donald Trump Jr to release the email chain related to his meeting with a Russian lawyer before the story hit the media.

The New York Times had been reporting on the meeting between Trump Jr and Russian lawyer Natalia Veselnitskaya for a few days, and had contacted Trump Jr for a statement on the content of the emails it had obtained. Trump Jr released his email chain along with a statement Tuesday, which was seemingly a pre-emptive action to minimise the upcoming Times story.

According to Assange, he made contact with Trump Jr on Tuesday morning and advised him to release the emails to WikiLeaks. "Two hours later, does it himself," Assange said.

Chinese troops have been deployed to the country's first overseas military base, in Djibouti on the Horn of Africa. Beijing says the base will be used for logistical purposes, such as resupplying ships taking part in peacekeeping and humanitarian missions.

Ships carrying personnel from the People's Liberation Army (PLA) were dispatched to set up the base in Djibouti on Tuesday, state news agency Xinhua reported, declining to mention the number of troops that were deployed.

Referring to the facility as a "support base," the Chinese media outlet said its purpose will be to ensure China's successful performance of missions in the region, including peacekeeping and humanitarian aid in Africa and western Asia. It did not say when operations would begin at the base.

It went on to state that the base will also assist with overseas tasks including military cooperation and joint exercises, as well as jointly maintaining security of international strategic waterways.

Democrats and their media allies are acting as if they've finally hit the Russian collusion jackpot over the revelation that Donald Trump Jr. met with a Russian lawyer. Hillary Clinton's running mate, Senator Tim Kaine, has even suggested this could be evidence of treason.

Professor Jonathan Turley of George Washington University threw cold water on all of this during an appearance on FOX News with Martha McCallum last night.

The West destroys those national leaders whom it is threatened by, so the life of Russian President Vladimir Putin id at risk. This was stated during a round table dicussion "The role of sanctions in relations between Russia and the European Union", held in Sevastopol, by the Belgian diplomat, director of the Geopolitical Research Center "Euro-Rus", Chris Roman.

"If someone offends Wall Street, NATO attacks everywhere in Libya, Iraq and Venezuela. If the leader is threatening Wall Street, he dies. Therefore, I believe that Putin's life is in danger, because he threatens so many interests in the West ", - said Roman.

He believes that the US' main goal is a new war in Europe.

"They organized the Second World War. Without America, Hitler would have gone bankrupt and would not attack Russia. Without America today, Ukraine would have been bankrupt and would not be able to do anything in the Donbass. Mafia from Wall Street wants a war with Russia. For America, the war - this is a business, because it is insulated by two oceans from wars' repercussions ", - said Roman.

Iran continues to increase its influence in the Middle East region and remains the main state sponsor of terrorism, Director of the Central Intelligence Agency (CIA) Mike Pompeo said. He added that the spread of the Iranian influence may become the greatest challenge for the United States' Middle East policy in the long term.

"The Islamic Republic of Iran is a powerful nation state that remains the world's largest state sponsor of terrorism. Its strength and influence continue to increase, most notably in recent years. When we look at what is happening today in Syria, in Yemen and in Iraq, you can see the threat. Iran clearly inspires to be the hegemonic power in the region," Pompeo said on Tuesday.

Iran managed to escape the international isolation in 2015 when the country signed the Joint Comprehensive Plan of Action that came into force in January 2016. The deal between Iran and the P5+1 countries, namely China, France, Russia, the United Kingdom, the United States plus Germany, stipulated the limitation of Tehran's nuclear program in exchange for the gradual lifting of international economic and diplomatic sanctions imposed on Iran.

Russian Foreign Minister Sergey Lavrov has advised the US State Department to keep up with events after spokesperson Heather Nauert said that Lavrov "likes to talk a lot and get out ahead."

During a daily State Department press briefing on Tuesday, Nauert was asked if there was any news on the monitoring of the Syrian ceasefire, as the previous day Sergey Lavrov had said that Russia, the United States, and Jordan would be conducting this from a center in Amman.

"Mr. Lavrov likes to talk a lot and get out ahead, I think, of some of the negotiations that are underway," the US State Department spokesperson responded. "That is all still being worked out. We are a little over two days into the ceasefire in that part of Syria. We're pleased with that. We think it's holding fairly well at this point. In terms of who is doing what, when, where, how, some of those details are still being worked out," she said.