Those are American weapons being used to terrorize destroy to kill and wound the Palestinians in Gaza. America once armed Saddam Hussein with WMD's and other hardware to help him kill 1 million Iranians during the Iraq/Iran war. Before that America armed the Shah of Iran. America also once armed the Taliban of Mullah Omar and al Qaida of Osama Bin Laden to fight the Soviet Union.
Guns and bullets seem to be a poor use of American largesse that ends up doing far more harm than good. Sending weapons to this part of the world clearly seems like it is not in the best long term national security interests of the United States. That America always seems to support tyrants and terror everywhere will not be missed, nor forgotten nor ignored in the Muslim world. Sowing the wind America could once again reap an Islamic whirlwind that it has already begun to stir in Iraq, Afghanistan, India, Iran, Indonesia and Pakistan.