Congress is back from Easter break. We check in with John Harwood of MSNBC and The Wall Street Journal about leaks, cabinet shuffling and more.

American Muslims are calling for moderation in Islam, and some are facing death threats for doing so. We speak to Asra Nomani, former reporter for the Wall Street Journal and Dr. Radwan Masmoudi of the Center for the Study of Islam and Democracy.

Ken Lay takes the stand in his own defense.

Did a young, best-selling author plagiarize? We look at the allegations against Harvard University sophomore Kaavya Viswanathan.

We speak with filmmaker Paul Greenglass about his new feature film, "United 93."