Apple CEO Tim Cook Stands Firm Against the FBI

The tech giant continues to refuse to assist the FBI in unlocking iPhone belonging to one of the suspected San Bernardino killers. SUBSCRIBE to ABC NEWS: https://www.youtube.com/ABCNews/ Watch More on http://abcnews.go.com/ LIKE ABC News on FACEBOOK https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc GOOD MORNING AMERICA'S HOMEPAGE: https://gma.yahoo.com/