As rain falls, President Barack Obama begins to take part in the annual Memorial Day ceremony at Abraham Lincoln National Cemetery, Elwood, Ill., May 31, 2010. Heavy rain and lightning later forced the cancelation of the event.

As rain falls, President Barack Obama begins to take part in the annual Memorial Day ceremony at Abraham Lincoln National Cemetery,  Elwood, Ill., May 31, 2010. Heavy rain and lightning later forced the cancelation of the event.