Tags: United States

Nigeria has brought in hundreds of mercenaries from South Africa and the former Soviet Union to give its offensive against Boko Haram a shot in the arm before a March 28 election, according to regional security, defense and diplomatic sources.

Major world powers have begun talks about a United Nations Security Council resolution to lift U.N. sanctions on Iran if a nuclear agreement is struck with Tehran, a step that could make it harder for the U.S. Congress to undo a deal, Western officials said.

The jury hearing the Boston Marathon bombing trial on Thursday is due to view autopsy photos of a university police officer whom prosecutors charge defendant Dzhokhar Tsarnaev murdered three days after the deadly bombing.