A US Senate report on harsh techniques employed to interrogate "terror" suspects post-9/11 attacks has condemned the CIA for brutality and deception.<br /><br />The full 6,200-page report remains classified. Ahead of the publication of the report, the US had tightened security at its embassies across the globe.<br /><br />Al Jazeera's Patty Culhane reports from Washington.<br /><br />Subscribe to our channel http://bit.ly/AJSubscribe<br />Follow us on Twitter https://twitter.com/AJEnglish<br />Find us on Facebook https://www.facebook.com/aljazeera<br />Check our website http://www.aljazeera.com/
