Mayor Bloomberg went underground Sunday to blow the whistle on the Senate's bid to allow guns on Amtrak trains. The mayor blasted lawmakers for voting to strip $1.6 billion in funding from Amtrak unless it tosses a rule against guns in luggage put in place after the 2004 Madrid train bombings. "This has nothing to do with the right to bear arms, and everything to do with keeping our country safe from terrorists," Bloomberg said at Penn Station. "The legislation... (GunPolicy.org)