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World leaders gathered to remember Nelson Mandela this week. But critics say there were some major social blunders made by President Obama, like taking 'selfies' and shaking hands with Cuban leader Raul Castro. Host Michel Martin asks Dorothea Johnson of The Protocol School of Washington, about head of state etiquette.

The communications agency's commissioners voted 3-2 to consider new rules allowing voice calls while jetliners are in the air — something that's been forbidden on U.S. flights. But the head of the Department of Transportation says he's "concerned" by the prospect of such calls.

Suthep Thaugsuban says the supreme commanders of the army, navy, air force and police have agreed to meet him in a move likely to spark concerns of a possible coup.

After Superstorm Sandy, tens of thousands of cars and trucks were lined up in neat rows on a runway in New York.

Part discount grocer, part social service agency, the supermarkets limit membership to those who can prove they receive some form of welfare benefits. These stores, which are flourishing in Europe, sell food that's been rejected by grocers but is still perfectly edible and would otherwise end up in landfills.

Jang Song Thaek, who had been a key figure in helping his nephew consolidate power after his father's death, was executed after being found guilty of treason.

The storm's damage and disruption to homes, cities and families is undisputed. But researchers studying the underwater coastline say Long Island fared relatively well. The face of the shore retained much of its shape because underwater ridges of sand just offshore may have cushioned the blow.

With Congress expected to pass its first bipartisan budget in years, renewed focus has fallen on the tactics that brought it about. These tactics may be puzzling (or alarming), but according to author Tim Harford, they're not new: They're rooted in game theory. He suggests reading Thomas Schelling's The Strategy of Conflict to learn more.

Even for those with the will and drive to pursue treatment, the process remains difficult, frightening and full of holes. Mental health advocates say little has come, on the federal level, from the task forces and promises that followed the Newtown shootings.

A year after the massacre at Sandy Hook Elementary School in Newtown, Conn., gunman Adam Lanza's motives are still unclear. Connecticut Gov. Dannel Malloy says people may just have to be satisfied with what they've known from the beginning — that on Dec. 14, 2012, a horrible thing happened.