Obama address, bells to mark 50 years since King's 'Dream' speech

Trayvon Martin's parents, Sybrina Fulton and Tracy Martin , listen to folksingers Peter Yarrow and Paul Stookey during the 50th anniversary of the ''March on Washington'' at the Lincoln Memorial in Washington August 28, 2013.

http://www.reuters.com/article/2013/08/28/us-usa-dream-ring-idUSBRE97Q0OH20130828?feedType=RSS&feedName=politicsNews