Deal Reached To Limit Iran's Nuclear Program --- Iran and six world powers have reached a preliminary agreement in Geneva on curbing Tehran's nuclear program in exchange for some sanctions relief. --- Obama said: "These are substantial limitations which will help prevent Iran from building a nuclear weapon. Simply put, they cut off Iran's most likely paths to a bomb. Meanwhile, this first step will create time and space over the next six months for more negotiations to fully address our comprehensive concerns about the Iranian program. And because of this agreement, Iran cannot use negotiations as cover to advance its program." - More, Greg Henderson - NPR