Big Questions after Russian Jet Breaks Up Mid-Flight

When a Russian passenger plane broke apart Saturday over the Sinai Peninsula, all 224 of those aboard died in the crash. The airline company has ruled out both technical malfunction and human error, but that conclusion could be premature. James Clapper, America’s Director of National Intelligence, said today that although there is as yet "no direct evidence," a terrorist attack cannot be ruled out. We hear more from former pilot Arthur Rosenberg, who is now an aviation attorney.