The law authorizing warrantless searches of data on U.S. citizens by the federal government has been so consistently abused that it must be either thoroughly revised or allowed to expire this year, surveillance and privacy advocates say. “A law designed to provide tools to collect foreign intelligence and prevent terrorist attacks has been warped into…

The law authorizing warrantless searches of data on U.S. citizens by the federal government has been so consistently abused that it must be either thoroughly revised or allowed to expire this year, surveillance and privacy advocates say. “A law designed to provide tools to collect foreign intelligence and prevent terrorist attacks has been warped into…