The Justice Department on Tuesday dropped its support for a controversial provision in a federal law that allows police to review some private emails without a warrant, but it asked Congress to expand its surveillance powers in other ways The testimony by a top Obama administration lawyer before a House subcommittee was met with cautious optimism by privacy advocates and civil liberties groups who have worked for years to overturn parts of the 1986 Electronic Communications Privacy Act. They said it provides a starting point for a compromise in a debate that has endured for more than a decade. "What's very positive to me is the amount of common ground that's suddenly arisen," said Chris Calabrese, legislative counsel with the American Civil Liberties Union, one of several organizations looking to change the law. "If we have an agreement on this (provision), we should move forward." The 1986 law was written before the Internet was popularized and before many Americans used Yahoo or Google servers to store their emails indefinitely. The law allows federal authorities to obtain a subpoena approved by a federal prosecutor—not a judge—to access electronic messages older than 180 days. Privacy groups have sought since 2000 to amend the law but failed after the Sept. 11, 2001, terror attacks shifted the debate over the government's ability to intercept communications. With Americans increasingly relying on email—and the proliferation of "cloud computing" to store messages on servers outside a person's home—the debate has shifted back toward privacy protections. Meanwhile, technology companies including Google, Twitter and Dropbox have said they are overwhelmed with requests by law enforcement for email records. Google says government demands for emails and other information held on its servers increased 136 percent since 2009. On Tuesday, the acting assistant attorney general in the Office of Legal Policy, Elana Tyrangiel, told a House Judiciary subcommittee that there is no principled basis to treat email less than 180 days old differently than email more than 180 days old. She also said emails deserve the same legal protections whether they have been opened or not. Her comments were in contrast to previous testimony by Justice Department officials, asking Congress not to do anything that would disrupt law enforcement's ability to investigate violent crimes and child pornography. source: phys.org