_"At any time"? Do you mean "With a court order"?_ A National Security Letter would do just as well, and at least two years of data need to be at the governmen

_"At any time"? Do you mean "With a court order"?_ A National Security Letter would do just as well, and at least two years of data need to be at the government's disposal. Without addressing the merits of National Security Letters, I should point out that one covering your data, or many people's data, or all of Facebook's data, might arrive at any time. * http://en.wikipedia.org/wiki/National_security_letter http://en.wikipedia.org/wiki/National_security_letter * http://www.aclu.org/national-security-technology-and-liberty/national-security-letters http://www.aclu.org/national-security-technology-and-liberty... * http://www.justice.gov/oig/special/s0803b/final.pdf http://www.justice.gov/oig/special/s0803b/final.pdf