Will Terrorism in France Mean Unity or Division?

Massive turnouts in Paris and other cities yesterday were a demonstration of national outrage against terrorism and anti-Semitism.  In Paris, the leaders of 40 countries marched in solidarity against terrorism. Now, as the search continues for possible accomplices in last week's deadly attacks, some 10,000 new security forces are being deployed around the country – almost 5000 will be assigned to guard Jewish schools and synagogues. Already, many Jews have been leaving France. There's also concern about an anti-Muslim backlash, based on fear that more young Muslims from impoverished suburbs will be radicalized. Will last week's violence fuel far-right political parties all over Europe or lead to cultural dialogue?