Actually they said they have twisted off some heads before and it was not enough. I wonder what they'll come up with this time.
Why can't Americans and Israelis twist off heads of terrorists?
“We’ve twisted off the heads of the most odious thugs, but clearly that’s not enough,” Medvedev said during a security meeting in the regional capital Makhachkala. “We’ll find them all in a timely manner and we’ll punish them all,” he said in comments broadcast on state television. “That’s the only way.”
http://www.bloomberg.com/apps/news?pid=20601087&sid=a5Abm2FAjqLA