Revealed: White House seeks to enlist Silicon Valley to 'disrupt radicalization'

Facebook, Twitter, Apple, Microsoft and YouTube will attend the meeting with intelligence agencies to discuss terrorists on social media and encryption

• Read the meeting's full agenda

The White House will attempt to enlist Silicon Valley's major technology firms in its efforts to combat terrorism on Friday when a delegation of the most senior intelligence officials fly to California to meet with executives from companies including Facebook, Twitter, Apple, Microsoft, YouTube and others.

A copy of the agenda obtained by the Guardian indicates the White House seeks more or less to channel Silicon Valley's talent into its war against Islamic State and other extremist groups.