An anonymous reader writes: According to Wired, 'National Security Letters allow the government to get detailed information on Americans’ finances and communications without oversight from a judge. The FBI has issued hundreds of thousands of NSLs and has even been reprimanded for abusing them.' It's significant, then, that Google has released data about how many NSLs they've received annually since 2009. The numbers are fuzzed — the FBI apparently worries that if we know how often they're spying on us, we can figure out who. But Google is able to say they've received from 0-999 letters each year for the past four years. And we know it's likely near the upper end of that range because they list the number of accounts affect, as well: always over a thousand.