More infiltration into Gaza...

Iran is the big factor here...

Weapons experts in Palestinian terror groups who have undergone training in Lebanon, Syria and possibly Iran have recently infiltrated the Gaza Strip, a senior security official said on Sunday.

The official said that after Israel pulled out of Gaza, several Palestinians who had attended training camps run by Iranians and Hezbollah members entered the Strip, apparently from Sinai.

Both Iran and Hezbollah have invested a lot of effort during the last few years in assisting terror organizations in the West Bank and Gaza, helping them manufacture explosives and high-trajectory weapons such as Qassam rockets and mortar shells.