I'd have to agree with Shadow, that's not a reciever but a vest. White House wouldn't say whether or not a president was wearing a vest, because
if they confirmed his chest was protected an assasin would just concentrate on the head.
You all have it completely wrong. The box is actually a remote control receiver. The GWB in the debates is actually a remote-controlled Bush
debato-bot. The REAL Bush is relaxing on the ranch while ROBOBUSH wins the election.
Here's an article about the bulge on salon.com They got this NASA photo
analyst to analyze a couple images from each debate, each showed that Bush had a 'bulge' in his 'poorly talered jacket'.