Home » BBC News - Technology » technology news » US voices frustration with 'warrant-proof' encryption US voices frustration with 'warrant-proof' encryption Unknown 6:33 AM BBC News - Technology technology news Encryption tools in apps such as WhatsApp "thwart law enforcement", says US Deputy Attorney General. from BBC News - Technology http://ift.tt/2ygsa2M Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati