Lawmakers are moving forward with a high-stakes proposal to reauthorize a controversial spying power, known as FISA, which allows the U.S. to collect electronic communications from foreigners abroad and occasionally capture Americans' data. This proposal, described as granting the government unlimited snooping authority, has sparked sharp disputes and drawn bipartisan battle lines in Congress. The House is expected to vote on the bill this week, which has already passed a key hurdle but faces challenges in the Senate, including debates over the inclusion of a warrant requirement.