The U.S director of national intelligence and leaders of the CIA, FBI, NSA and DIA testify on Worldwide Threats before the House permanent Select Committee on Intelligence. Subscribe to The Telegraph with our special offer: just £1 for 3 months. Start your free trial now: https://www.telegraph.co.uk/customer/subscribe/digitalsub/3for1/?WT.mc_id=tmgoff_pvid_conversion-subscription_editorial-iniative_03-22_EGW-13_organic_youtube Get the latest headlines: https://www.telegraph.co.uk/ Telegraph.co.