Russian Prime Minister Vladimir Putin makes a thumbs-up gesture while answering a question during his annual televised phone-in show in Moscow on December 3, 2009.  Putin urged "very tough" measures against terrorism, as he sought to assure Russians shocked by a deadly train bombing that killed dozens of people.    AFP PHOTO / RIA NOVOSTI / POOL / ALEXEY DRUZHININ (Photo credit should read ALEXEY DRUZHININ/AFP/Getty Images)