Emails saying Obama is Muslim and doesn't recite the Pledge of Allegiance get passed around all the time. A lot political fiction does. I've been sent many things like this and asked why the media won't report them. One good site to check such items is snopes.com, a longstanding debunker of urban legends.
What stock do you put in such e-mails from family and friends? If the information is wrong, do you point it out or do you quietly delete the message and move on? What examples have you received?