James Clapper, John Brennan, Michael Flynn, Robert Mueller

A House Intelligence Committee takes up America's biggest threats in a hearing on Capitol Hill.

FOX News Radio's Jeff Monosso reports:

North Korea, Iran and Syria: The most dangerous nations facing America.

The findings of a House Intelligence Committee that also notes during their annual worldwide threat assessment hearing...

(Rogers) "We experience a daily onslaught of Russian and Chinese cyber attacks."

Attacks that Committee Chairman Michigan Republican Mike Rogers says...

(Rogers) "Steal Americans' technological innovation and ingenuity."

CIA Chief John Brennan, National Intelligence Director James Clapper, and FBI Director Robert Mueller also in attendance.

Mueller testifying that cases of espionage have increased in recent years, but that the amount of catches are also up.

Jeff Monosso, FOX News Radio.