The American press has shown only a few images of the suffering in Gaza. They like to show those cinematic images of cool explosions off in the distance. They're also not showing many images from the Israeli side. Shown below is an Israeli picture of the damage done by the legendary Quassam rockets. This morning, NPR claimed that the sound of gunfire was coming from Hamas anti-aircraft guns. Hamas anti-aircraft guns? Hamas looks to be spending the bulk of their military budget on ski masks.
There's no good guy when both sides decide it's OK to kill people. However, one of the bad guys is acting very badly. It's been claimed that Hamas is using weapons provided by Iran. I don't think you need to go all the way to Iran for the makings of a pipe bomb. Israel however is quite openly using billions of dollars worth of US supplied weapons.