Trust Them With Your Life?

I haven't trusted the Secret Service to preform their job in a non-political way for years now. Now there's this news:
Police concerned about order to stop weapons screening at Obama rally

I first clued into possible SS malfeasance when I read this amazing Rolling Stone article on how the press framed Al Gore in 2000. Included is a dissection of a little manufactured story that made Gore look bad and was started by an SS decision. Then the Secret Service were organizing the "Free Speech Zones," and the questionable security at the 2004 Democratic Convention in Boston.

Are they impartial? If I were running for president I would hire my own security firm.