The State Department on Monday would not rule out giving Iran up to $50 billion as a so-called "signing bonus" for agreeing to a nuclear deal later this year, according to comments made to journalists following reports that the Obama administration had formulated a plan to release tens of billions of frozen Iranian funds. Experts have said this multi-billion dollar "signing bonus" option, which was first reported by the Wall Street Journal, could be the largest cash infusion to a terror-backing regime in recent memory. A cash release of $30 to $50 billion upon reaching a final nuclear agreement would...