07/24/2002 AT 01:00 PM EDT
It was an unlikely role for "Die Hard" star Bruce Willis: playing sidekick to President George W. Bush. Still, that was the cast on hand Tuesday -- along with Willis's ex-wife, Demi Moore, and their three children, Rumer, Scout and Tallulah -- as the two men joined forces in the White House East Room and urged Americans to be heroes by adopting vulnerable children languishing in foster care, reports Reuters. The gathering, which also included White House senior economic adviser and adoptive dad Larry Lindsey, was to announce a new public service campaign to encourage the adoption of often older, sometimes emotionally challenged children, said the news service. Bush named Willis, 47, national spokesman for kids in foster care. "We all know Bruce is a tough guy in the movies," said the President, according to Reuters. "The truth of the matter is he has a tender heart, a tender heart for children." Reuters notes that more than 130,000 of the 565,000 American children in foster care are waiting to be adopted. "They are growing older every day," said Patrick Purtill, president of the National Council for Adoption. "They're not dry goods. You can't just warehouse them."