Nuclear security

Top military leader: Deal keeps Iran from atomic weapon

America's top military leader said Wednesday that therecently signed nuclear deal works to keep Iran from having an atomic weapon, but does not address other concerns about Tehran's malign activities in the region.

"These run the gamut from ballistic missile technology to weapons trafficking, to the use of surrogates and proxies to naval mines and undersea activity - and last but not least to malicious activity in cyberspace," Army Gen. Martin Dempsey, chairman of the U.S. Joint Chiefs of Staff, told the Senate Armed Services Committee.