An anonymous reader quotes a report from Reuters: U.S. Senate Majority Leader Mitch McConnell set up a vote late on Monday to expand the FBI's authority to use a secretive surveillance order without a warrant to include email metadata and some browsing history information. The move, made via an amendment to a criminal justice appropriations bill, is an effort by Senate Republicans to respond to last week's mass shooting in an Orlando nightclub after a series of measures to restrict guns offered by both parties failed on Monday. Privacy advocates denounced the effort, saying it seeks to exploit a mass shooting in order to expand the government's digital spying powers. The amendment would broaden the FBI's authority to use so-called National Security Letters to include electronic communications transaction records such as time stamps of emails and the emails' senders and recipients. NSLs do not require a warrant and are almost always accompanied by a gag order preventing the service provider from sharing the request with a targeted user. The amendment filed Monday would also make permanent a provision of the USA Patriot Act that allows the intelligence community to conduct surveillance on "lone wolf" suspects who do not have confirmed ties to a foreign terrorist group. A vote is expected no later than Wednesday, McConnell's office said. Last week, FBI Director James Comey said he is "highly confident that [the Orlando shooter] was radicalized at least in part through the internet."