Here's a report about a group of Hamas who attempted to plant a bomb at a security barrier. The sheer nerve of the al-Qassam to say that they will retaliate because they're attempt to plant a bomb was foiled is almost laughable. They're basically saying that the bomb should of been allowed to be planted.
http://news.bbc.co.uk/1/hi/world/middle … 602679.stm
http://news.bbc.co.uk/1/hi/world/middle … 602679.stm