Though not a particularly happy or (even sadder) surprising one--this trend has been around for a while:
"Last week, the U.S. Census Bureau released a collection of data from its 2008 Current Population Survey. Here is one particularly arresting statistic: In 2008, only 38 percent of black children lived with two parents, compared to 85 percent of Asian children, 78 percent of non-Hispanic white children, and 70 percent of Hispanic children."
One hopes President Obama will use his bully pulpit to appeal to African-Americans in this country to do something about such a trend.