A bill to amend the Homeland Security Act of 2002 to authorize the Securing the Cities Initiative of the Department of Homeland Security, and for other purposes.

Amends the Homeland Security Act of 2002 to authorize appropriations to the Director of the Domestic Nuclear Detection Office of the Department of Homeland Security (DHS) for the Securing the Cities Initiative, including funding for: (1) each city in which the Initiative has been implemented by FY2009; and (2) additional Securing the Cities initiatives to be implemented in not fewer than two sites participating in the Urban Area Security Initiative.