If that were true then Israel, the U.S. and Britain would be the top three on any list of terrorist organisations. Hamas haven't got the weapons or means to even begin to reign terror like the above three do. The only reason that Hamas makes the list and the above don't is that we live in a corrupt world of double standards.
Russian police nab man suspected of killing his 6 children along with his wife and mother (AP)
from the article: Hamas: No connection between Shalit release, formation of unity gov't