DHS plans to expand it's surveillance of Americans using "Einstein 3".

2013 Federal Budget Limits Body Scanners, But Expands Domestic Surveillance.

According to White House budget documents and the Congressional Testimony of Secretary Napolitano, DHS will not purchase any new airport body scanners in 2013. However, the agency will expand a wide range of programs for monitoring and tracking individuals within the United States. This includes the development of biometric identification techniques for programs such as Secure Communities. DHS will also seek funding for "Einstein 3," a network intrusion detection program that enables surveillance of private networks.
http://www.whitehouse.gov/sites/default/files/omb/budget/fy2013/assets/homeland.pdf

http://www.dhs.gov/ynews/testimony/20120215-1b-s1-fy2013-budget-HSC.shtm

http://epic.org/2012/02/2013-federal-budget-limits-bod.html