U.S home prices hit post-bust lows

<br><br> Home prices in a majority of major U.S. cities tracked by a private trade group have fallen to their lowest levels since the housing bubble burst. The Standard & Poor's/Case-Shiller index fell in December from November in all but one of the 20 cities it tracks. The 20-city index declined 1 per cent. The only market to see a gain was Washington, D.C. <br><br>