Curiosity is getting the best of me, and I figured HN is a good place to scratch the itch. Has anyone done a study or solicited information from the government

Curiosity is getting the best of me, and I figured HN is a good place to scratch the itch. Has anyone done a study or solicited information from the government that shows the impact of legislation such as FISA or better yet the Patriot ACT's post provision sunset (what's left of the act) parts? Namely - hard numbers that shows in a numerical fashion the fact based evidence to keep overt invasions of privacy in check in the name of security. Being from New York, I always try to question politicians here - more specifically Gov. Cuomo on the quantifiable evidence that supports the SAFE ACT's passage in our state - on such things, to have a better impact on things that affect me regionally vs. worrying about broad stroke Federal things that rarely do.