Contestants show their body art. The 2009 Body Art Expo at the Cow Palace in San Francisco gathers lovers of tattooing to go under the needle and to show off their skins.

The 2009 Body Art Expo at the Cow Palace in San Francisco gathers lovers of tattooing to go under the needle and to show off their skins.

Angela gets a new tattoo. The 2009 Body Art Expo at the Cow Palace in San Francisco gathers lovers of tattooing to go under the needle and to show off their skins.

a firefighter with the Smokey Bear hotshots.

Backfires set by the Crane Valley hotshots prevent the spread of the main fire along the fire containment lines. The distinctive yellow and green clothing of US Forest Service firefighters is actually a special kind of fire-resistent fabric called "Nomex."

A controlled burn of grassland, set to block the main fire from spreading, burns quickly and leaves trees unharmed.