U.S. Admits Surveillance Violated Constitution At Least Once
wired.com
wired.com
Distinguishing between communications end points inside and outside the U.S. will never be easy, and will only get harder as technology becomes more advanced and adversaries learn to better exploit it to cover their tracks. You can either give up on (100% Constitutional!) cross-border intercepts, or you can have oversight to minimize "collateral" data collection on citizens.
If you think there's evidence that U.S. citizen-only private communication is being monitored and retained deliberately, spell it out, because that's huge news.
http://www.newyorker.com/reporting/2011/05/23/110523fa_fact_...