After well over a year of scrutiny, the proposed merger between the country's two satellite radio providers - XM and Sirius - is finally on the home stretch, set for an approval vote as early as Aug. 1. But wait. This week, one of the FCC commissioners proposed even more conditions - beyond what chairman Kevin Martin has already suggested and what XM/Sirius execs have offered. With Washington politics at play, could the last mile to a vote be delayed even further? From the beginning, XM and Sirius faced an uphill battle to get this merger approved, notably the matter of a no-merging-in-the-future clause that was established when the two companies received their licenses. But through it all, Sirius CEO...