Senate Scrutiny of Nonprofits Spurring Disclosure

"A crackdown on nonprofit political spending could lead to greater disclosure of who is financing independent attack ads and other activity waged by individuals or special interest groups, though it’s unlikely to end the escalating costs of campaigns. Donors could shift their money to super-political action committees, which can accept unlimited checks and must make public the identity of their contributors.
“It’s like whack-a-mole,” said Bill Allison, editorial director for the Sunlight Foundation, a Washington-based watchdog group, “The money will all flow to the super-PACs.”"

Bloomberg