When 50 million red-blooded American men sit down to watch the Superbowl, they'll see more than the Patriots and the Panthers facing off. This year's game is also a showdown for dominance in the billion dollar battle among companies selling erectile dysfunction drugs. But some are asking if these drugs are solely a cure for dysfunction, and whether they might not also be a new cause of sexual insecurity for couples. Impotence Drugs and Sexual Insecurity | 
