AC

Below is the rush transcript for "This Week" on January 4, 2014. It may contain errors and will be updated. ANNOUNCER: Now on ABC This Week, the mystery of AirAsia flight 8501: more pieces of the plane uncovered. Are they closing in on the black boxes? What caused the plane to fall from the sky? And how worried should you be the next time you fly in bad weather? Shakeup: Republicans ready to take control of congress. Three of the newest power players are here. Then, was it the first big announcement for 2016 in 2015? What did Mike Huckabee reveal overnight. And, the homecoming: how cities across the country are giving homeless veterans a new beginning. From ABC News, This Week with George Stephanopoulos begins now. MARTHA RADDATZ, HOST: Good morning, I'm Martha Raddatz. And we're tracking developing stories on several fronts, including former Arkansas Governor Mike Huckabee making a big announcement about 2016 overnight. But we start off with new and encouraging...