SAN FRANCISCO , California ( CNN ) -- NEW : Thousands march to the Chinese consulate ahead of Wednesday 's run . Comment: San Francisco , California , is only U.S. venue on 23-city global tour . Demonstrators protest China 's Tibet policy in cities along route .
NEW : Thousands march to the Chinese consulate ahead of Wednesday 's run . Comment: San Francisco , California , is only U.S. venue on 23-city global tour . Demonstrators protest China 's Tibet policy in cities along route .