An anonymous reader quotes a report from TechCrunch: Today, Twitter joined the ranks of Yahoo, Cloudflare and Google by announcing it had received two national security letters, one in 2015 and one in 2016. The NSLs came with gag orders that prevented Twitter from telling the public or the targeted users about the government's demands. The FBI recently lifted these gag orders, allowing Twitter to acknowledge the NSLs for the first time. In the newly-published NSLs, the FBI asked Twitter to turn over "the name, address, length of service, and electronic communications transactional records" of two users. Twitter associate general counsel Elizabeth Banker said that the company provided a "very limited set of data" in response to the requests, but did not make clear exactly what kind of data Twitter provided. "Twitter remains unsatisfied with restrictions on our right to speak more freely about national security requests we may receive," Banker wrote in a blog post. "We would like a meaningful opportunity to challenge government restrictions when 'classification' prevents speech on issues of public importance."