Of wonderful note:<p><i>At approximately 1:30 p.m. CDT on August 2, 2013, Mr. Levison gave the F.B.I. a printout of what he represented to be the encryption keys needed to operate the pen register. This printout, in what appears to be four-point type, consists of eleven pages of largely illegible characters. To make use of these keys, the F.B.I. would have to manually input all two thousand five hundred and sixty characters, and one incorrect keystroke in this laborious process would render the F.B.I. collection system incapable of collecting decrypted data.</i><p>I tip my hat to this magnificent bastard.<p>EDIT:<p>The core issue is summed up nicely thereafter:<p><i>Levison believes that when the government was faced with the choice between getting information that might lead it to its target in a constrained manner or expanding the reach of its surveillance, it chose the latter.</i>