Funny how the LOUDEST of squealers about Federal Spending mindlessly regurgitates the propaganda put out by pork barreling politicians who are lobbying for big fat Fed Government Checks to be sent to their home town fat cat corporate lobby groups to do this "Research".
But then for the Freeper DNC Virtual Campaigners posturing as "Betrayed Conservatives" it not about FACT, it about finding the latest thing to scream their hate and bile at the Bush Administration over.
I have a hunch that exposives detection is so important that this activity has been moved into the "black" budget of CIA/NSA and MI6, and thus DHS doesn't need the budget for this activity. I don't have any inside information; that's just an intuitive hunch.