wolf? >> chris lawrence at the pentagon. at least 11 people are dead and 100 are injured after a massive explosion at a subway station. demetris medvedev is calling it a terrorist attack. also, held at gunpoint and interrogated for hours, you're going to want to hear what happened to our own cnn team investigating internet activists in bahrain. also, president obama may be trying to redefine the term liberal. we're digging deeper. and frozen in time one month ago. we're going inside japan's mandatory evacuation zone. ♪ do you believe in magic?