Donald Trump has callously thrown around accusations of treason aimed toward his political rivals — others think the president's actions are worthy of the charge. Treason is a high bar to prove in the US, but in Ukraine, a presidential treason conviction was announced earlier this year. And it has lessons for American democracy, experts say.

Cold War style is undergoing something of a renaissance in Europe -- there's current nostalgia for that old Communist aesthetic.
Syria in talks with France, Qatar and Turkey to advance peace with its neighbors Israel and Lebanon.
Helene Cooper talks about her memoir that tells the story of her family in Liberia -- and by extension chronicles Liberia's history.
Kerala, India enjoyed good public health despite deep poverty; but now residents are growing richer, and overall health appears to be declining.
World music superstar Angelique Kidjo was asked, "what's on your iPod?" The answers sparked questions and the mystery of the tune Habibi was pursued.
The reluctant warrior -- John McCain's record on foreign policy, and what to expect if he's elected into office.
The Republican party is not known for attracting immigrants. But some do gravitate to the GOP. What is about this year's Republican ticket that appeals to them?
Among the many constituencies that John McCain is trying appeal to this election are the Latino voters.
Thailand's capital, Bangkok, is under emergency rule following overnight clashes between rival political supporters.
The U.S. military has handed Anbar province, once the center of Iraq's Sunni insurgency, back to Iraqi control.