On the complicity of the UN:
Military correspondent Doron Kadosh visited the tunnel in the Jabaliya "Refugee" Camp where IDF soldiers found the bodies of four hostages, and wasn't surprised that the entrance was in a building built by UNRWA with EU funding.
www.israelnationalnews.com
The entrance to a tunnel inside a UNRWA building.
1) They had to know.
2) Tunnel entrances exist for combat reasons.
As you continually remind everyone, in Gaza, nothing happens without the approval of Hamas. Anyone who stands against Hamas comes to harm or death. So what exactly is any aid agency supposed to do in Gaza that is not somehow complicit with Hamas?
Unless you are suggesting (without a shred of evidence) that the UN through the UNRWA helped build the entrance, what is the point of your factoid?