At least three are dead and 170 wounded in what President Obama calls an act of "terrorism." We update yesterday's bombings at the Boston Marathon, including the impact on a historic American city. Also, the Senate "Gang of 8" hammer out a bipartisan immigration bill. On Reporter's Notebook, a bipartisan investigative task force is unanimous: the US committed "torture" with "no justification" after September 11. We talk with a retired general who served on the task force.
Banner image: Runners continue to run towards the finish line of the Boston Marathon as an explosion erupts near the finish line of the race on April 15, 2013. Photo by Dan Lampariello/Reuters