Donald Trump's former presidential campaign manager, Paul Manafort, got a surprise visit at his Northern Virginia home yesterday morning when 12 FBI agents undertook a pre-dawn raid on his home and made off with various documents thought to contain evidence of criminal activity. The raid was instigated by Special Counsel Robert Mueller and was authorized by a judge who "signed off" on the warrant shown to him by Mueller's crew which specified in great detail the precise documents they were after, documents evidencing criminal activity and as such in danger of being destroyed by Manafort unless obtained immediately and by complete surprise. A mere subpoena would have given Manafort time to destroy and all such documents.