1. NUCLEAR CRISIS
NRC chairman takes center stage as U.S. eyes reactor security
The March 11 earthquake and tsunami in Japan that triggered widespread fears over nuclear security have thrust an unfamiliar face into the national spotlight: Gregory Jaczko, head of the U.S. Nuclear Regulatory Commission. And the chairman will only grow in prominence as he leads a nationwide security check on the country's 104 nuclear reactors at the behest of President Obama.