The photo above was taken May 2003 showing Army National Guard members standing watch near the Holland Tunnel on New York City's Canal Street.
There are critics of the change, in the military and among civil liberties groups and libertarians who express concern that the new homeland emphasis threatens to strain the military and possibly undermine the Posse Comitatus Act, a 130-year-old federal law restricting the military's role in domestic law enforcement.
Obama may have other ideas, however. In fact, he may completely rescind the Patriot Act to appease the Democrats in Washington who have been complaining about warrentless wiretaps and other homeland security measures the Bush administration has been using to successfully keep America safe since 9-11.
Click here for a long list of terror attacks averted since September 11, 2001.
More on the 20,000 homeland security force story here.