Being black can mean being a suspect

The 39-year-old former Marine said he's never had any trouble with the law, other than a few traffic violations, and leads a middle-class life in the Atlanta, Georgia, area.

But the AT&T customer care representative said he still gets nervous when he hears that police are looking for a 6-foot-tall black man, "because I know I fit that description."

"I worry I will get pulled over and some police officer decides to shoot first and ask questions later," Williams wrote.

Police recently questioned him in his own driveway after getting complaints that a man was walking in neighbors' yards, Williams said. iReport.com: Tell us what you thought of "Black in America."

"You never know what to expect when you get pulled over by police and that's how it is when you're black," he said.