 Wednesday, a delegation from the U.S. and leaders of the San Diego Zoo Wildlife Alliance joined dignitaries and conservation leaders in China for a farewell ceremony. Once the pandas safely arrive in San Diego, they'll take some time to acclimate to their new home before this public debut. It's taken months to reach this point after relations failed between the two countries. All giant pandas had to leave the U.S. and return to their native China. Now, though, new contracts and better relationships are in place. I'm Tammy Trujillo.