(from L to R) Taiwan's National Security Council secretary general Su Chi, Taipei Mayor Hau Lung-bin, de facto US envoy Stephen Young, Taiwan's parliament speaker Wang Jin-pyng and Taiwan's former envoy to the US Frederick Chien clap during a site dedication ceremony for a de facto US embassy in Taipei on June 22, 2009. Officials hailed the planned compound as a milestone in the Taipei-Washington ties.