According to the Corner of National Review, the DC government is in fear that their oppressive gun control ordinances are going to be tossed into the garbage (as they should be). So, in anticipation of this, the police are now going door to door and asking permission to search houses. If you voluntarily give up your gun then you won't be charged with a law that is about to become unconstitutional.
In the meantime, you are being asked to give up your right to remain free from unreasonable searches, and to be secure in your home and papers.
Aren't these the same people that we want to hand health care over to?