<p>The 54-year-old son of astronaut Walter Schirra was arrested at San Francisco International Airport on child sex charges as he tried to board a plane for Thailand, allegedly to solicit sex with underage boys, federal agents said Monday.</p>
<p>Walter M. Schirra III of San Francisco, a property manager, was arrested Saturday. A search of his luggage revealed photos of shirtless Asian boys, sexual performance prescription drugs, condoms and large amounts of candy, said Special Agent Catherine Miller of U.S. Immigration and Customs Enforcement. None of the seized items is illegal, but a search of a computer at Schirra's home revealed images of child pornography, Miller said.</p>