Since the early 1990's the FBI / federal government have had mirror servers attached to every ISP co-location site in the country. Every single bit of data that is transmitted over the internet is stored, filtered and suspect emails, web posts etc are flagged based upon specific keywords. If something you send trips a flag, the feds get a FISA warrant and open an investigation. This will basically eliminate the FISA process. Look up the FISA stats, last time I checked, 99% of all applications are granted so this really isn't going to change all that much. It's just much more overt.