So much for US intelligence scaling back its curiosity in the wake of Edward Snowden's leaks. An Office of the Director of National Intelligence transparency report has revealed that the CIA and NSA doubled the number of searches for the content of Americans' communications in an NSA database between 2013 and 2015. Where the two agencies made about 2,100 such requests three years ago, they searched 4,672 times last year. Just what triggered the spike isn't clear. There's a chance that some of the increase comes from repetitive searches (that is, running similar queries more than once), but they were also factors in 2013 -- the odds are that activity went up.