Read more at https://on.ft.com/2uP4LCN<br /><br />US President Donald Trump is considering revoking security clearances held by John Brennan, the former director of the CIA, and other retired intelligence chiefs who have criticised his approach towards Russia and President Vladimir Putin<br /><br />Subscribe to FT.com here: http://bit.ly/2GakujT<br /><br />Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
