Russia, China, Iran and North Korea are the top nation-state cyber threats, the intelligence assessment found. Traditionally, China had been first on that list, but Russia was listed first this year for the first time. ... "Homegrown violent extremists continue to pose the most likely threat to the homeland," Clapper said. Cyber Threats Expanding, New US Intelligence Assessment Says - NYTimes.com Intel chief says 2014 deadliest year for terror ever recorded, in counter to upbeat Kerry Thursday February 26 th , 2015 at 3:30 PM 1 Share Now Playing What ISIS really wants: An in-depth examination The top U.S. intelligence official on Thursday gave a drastically different assessment than Secretary of State John Kerry of the terror threat -- declaring 2014 the deadliest year for global terrorism ever recorded, after Kerry claimed that threat was diminishing. Director of National Intelligence James Clapper, testifying