The U.S. National Security Agency has patented a technique for figuring out whether someone is tampering with network communication.
The NSA's software does this by measuring the amount of time the network takes to send different types of data from one computer to another and raising a red flag if something takes too long, according to the patent filing. (more)
The first thing that everyone asks is, "If this was developed with taxpayer money..."
Calm down, your two cents were taken into consideration.
If you are an American taxpayer, you own a piece of this...
Assignee: The United States of America as represented by the Director, National Security Agency (Washington, DC)