First lady Michelle Obama is in London to represent the president at tonight's Olympics opening ceremony.

As the leader of the U.S. delegation, she also plans to attend some of the early events, particularly swimming and basketball.

President Obama's likely rival in the fall, Mitt Romney, made headlines in London when he questioned how prepared Britain is to stage the Games, resulting in slaps on the wrist from local politicians.

This is Michelle Obama's first Olympics, but she's been around the international scene long enough to know a loaded question when she hears one.