Critics say he should focus blame on white supremacists by name
Visitors and tour groups take hour-long tour through simulated journey of a refugee
The beating of peaceful civil rights demonstrators by police in Selma, Alabama, 50 years ago is known in the US history as 'Bloody Sunday'
Spring snowstorm blankets Washington region, complicating life for some commuters and disappointing tourists
President Obama calls Holbrooke as 'one of the giants of American foreign policy' and 'architect of the [Dayton peace] accords'