WASHINGTON (Reuters) - A secretive U.S. Drug Enforcement Administration unit is funnelling information from intelligence intercepts, wiretaps, informants and a massive database of telephone records to authorities across the nation to help them launch criminal investigations of Americans.
Although these cases rarely involve national security issues, documents reviewed by Reuters show that law enforcement agents have been directed to conceal how such investigations truly begin - not only from defence lawyers but also sometimes from prosecutors and judges.
