The Green Movement has strongly resisted all sanctions against Iran, and even more passionately opposes any military strikes. If Israel strikes, it will effectively kill the Iranian opposition movement, and set off a global wave of Jihadism which will kill many American soldiers and civilians. So how to respond to the Revolutionary Guards' continuing and mounting brutality?
The obvious answer, aired by Spencer Ackerman here, is very targeted sanctions designed to hurt the pocket-books of the regime's leadership, not its people. How one does this without appearing to hurt the very people we want to support is above my paygrade. But I'd be eager to air any specifics. What I do oppose is the "crippling" sanctions favored by Howard Berman and Hillary Clinton.