"Security concerns are figuring prominently in the development of and debate on immigration legislation in the 109th Congress. In May 2005, the REAL ID Act became law as Division B of P.L. 109-13. It contains a number of immigration and identification document-related provisions intended to improve homeland security. Among these are provisions to make changes to the Immigration and Nationality Act (INA) with respect to asylum and other forms of relief from removal; to expand the terrorism-related grounds for alien inadmissibility and deportation; and to set standards for state-issued drivers' licenses and personal identification cards, if such documents are to be accepted for federal purposes."
CRS Report for Congress, RL33125
U.S. Department of State: http://fpc.state.gov/