"My security and my safety and my life are a little bit more important than tennis," Williams said Sunday after winning in the third round of the Nasdaq-100 Open (search). "And so if it became a real to concern to where I personally wouldn't feel comfortable, then I wouldn't go to Athens."
Williams teamed with her sister Venus to win the gold medal in doubles at the 2000 Sydney Games. She hopes to play singles and doubles at the Aug. 13-29 Athens Olympics.
"You can't stop living your life because you're scared something's going to happen," she said. "But at the same time, I'm very aware of things that are going on in the world. ... It's definitely a concern of mine. I'd be kind of naive to say it isn't."
Security measures at the Olympics are expected to cost more than $800 million and include some 50,000 police, soldiers and other personnel. But U.S. officials and others have expressed concern about whether the measures are adequate.