A ban on American tourism to North Korea will go into effect on Friday, and Hurricane Isaac leaves its mark on global energy markets.

Qatari officials dig in for the long haul in their diplomatic spat with Saudi Arabia, and the Euro continues to gain against the US Dollar.

Iran rejects a U.S. request for international inspectors to visit military sites in the country, and a strict new plastic bag law goes into effect in Kenya.

Did $900k in lobbying help Venezuelan oil firm CITGO avoid new U.S. sanctions? And NAFTA talks start to get ugly.

Harvard's Graham Allison considers how Chinese and American nationalism could drive conflict between the two countries.

Harvard's Graham Allison considers whether the U.S. should cede ground in Asia in order to de-conflict with China.

Harvard's Graham Allison explains how ruling powers and rising powers can avoid conflict caused by the Thucydides Trap phenomena.

Harvard's Graham Allison explains how China's rise could impact the American psyche.

Harvard's Graham Allison explains the concept of Thucydides's trap and how it applies to the U.S.-China relationship today.

U.S. military leaders soothed officials in South Korea, China and Japan this week, emphasizing that they understand the risks of war with North Korea.

OPEC efforts to stem oil production are being threatened by near-record U.S. crude output, increasing the likelihood that a global glut will drag on past 2018.

Negotiators from Canada, Mexico and the U.S. formally began talks to redo the 23-year-old trade deal in Washington on Wednesday.

The Chinese and Indian militaries are increasingly on edge as a border dispute in the Himalayas shows few signs of abating. 

China says it will start blocking North Korean exports included in recent U.N. Security Council as early as Tuesday, weeks before they're mandated to do so.

Is President Trump overstating the readiness of the US military to wage a military campaign in North Korea? And Russia picks up the scraps in the Venezuelan economy.

The US expels two Cuban diplomats from Washington after reports emerge that Cuba may have used acoustic devices to try and deafen American personnel in Havana.

Kenyan President Uhuru Kenyatta is claiming victory in elections, but his challenger says he's once again the victim of vote rigging.

China appears to start cracking down on some North Korea exports, and scientists warn that the world may be wildly undercounting greenhouse gas emissions.

Secretary of State Rex Tillerson says the U.S. is open to direct talks with North Korea, if the country stops its missile tests. And the U.N. effort to investigate Syrian war crimes falls apart.

The U.S. war in Afghanistan has reportedly become a sore spot between President Trump and his generals. Will Afghanistan force Trump back to his anti-intervention views?

Russia counters new U.S. sanctions with hard rock music, and as of September 1st, North Korea will be off limits to U.S. tourists.

Two separate reports detail widespread voting irregularities during Sunday's elections in Venezuela, and Qatar spends big to upgrade its Navy despite a Saudi economic blockade.

Vice President Pence backs Georgia's push to join NATO during a Tuesday visit, and Los Angeles will host the 2028 Olympics.