Bobsleigh star Kaillie Humphries cleared to compete for US at Winter Olympics | Bobsleigh

Kaillie Humphries is now, officially, an American.

And just like that, the US medal hopes in bobsledding at the Beijing Olympics just got much stronger.

The reigning world champion in both monobob and women’s bobsleigh was sworn in as a citizen in San Diego on Thursday, ending her long saga to…