By Mark Hosenball WASHINGTON (Reuters) - Attacks by "homegrown" terrorists are among the most imminent security threats facing the United States in 2016, along with dangers posed overseas by Islamic State and cyber security concerns, the top U.S. intelligence official said on Tuesday. In his annual assessment of threats to the United States, Director of National Intelligence James Clapper warned that fast-moving cyber and technological advances "could lead to widespread vulnerabilities in civilian infrastructures and U.S. government systems." Terrorism remains a top concern in President Barack Obama's last year in office, Clapper said in prepared testimony before the Senate Armed Services and Intelligence Committees.
Stocks worldwide resumed their downward slide Tuesday a day after a massive sell-off as investors failed to shake off dogged fears over economic weakness, banking woes and a gloomy oil price outlook. The latest round of blood-letting came on the back of worries about the financial sector as the global economy slows down, without the support of the Federal Reserve's easy monetary policies.