Senate debate begins on immigration reform, but real divisions threaten the bill. On the NSA controversy, a key Democrat calls for Senate hearings on the secret surveillance. The State Department acknowledges a sex-drugs-and-coverup controversy but insists allegations of high-level misconduct are "preposterous" and "inaccurate." Federal appeals ruling refusing a delay on over-the-counter access for morning-after pills may have led White House to reverse course. Markets: Wall Street looking to central bankers, not business fundamentals, for guidance.