Shares of XM and Sirius Satellite
Radio plunged Wednesday after the chairman of the
Federal Communications Commission send that FCC rules prevent a merger. The FCC rules that 
allowed the creation of the satellite business specifically forbid a merger between the
two broadcsters
Investors took the
comments to mean that Martin and the FCC won't agree to change the rules. XM's
shares dropped 9.9% to close at $15.43 on nearly triple its average trading volume and Sirius fell 7% to $3.86. (more @ BusinessWeek)
