To add to this conversation, since 9-11, the US postal service photograph ever piece of mail sent to your home. They can trace that mail to the original pick up point in the postal systems and locations it is routed through the postal systems. They share this information with the police and government agencies upon requests. For those getting porno mags they know your pervert.
Not only are the monitoring every call into your home as well as every email you ever sent they know about every piece of mail you have received.
Grant it this is nothing new, they had the ability to monitor mail, but they would have to tell the USPS ahead of time who's mail to monitor and what to monitor for, today they just track it all and the police can come in at any time and look what you been up too.
http://www.nytimes.com/2013/07/04/us...anted=all&_r=0