that the UN accused Hamas during Cast Lead(and Hamas admitted)of appropriating ordnance that the UN had disarmed. Is it reasonable that the forward(fused)half a bomb didn't explode but was found more or less intact, while the unfused rear of the bomb did explode and disintegrated with such force that the investigators did not claim to have found any part of it in the confined factory space? As people who presumably value their credibility, do you really want to make that claim? If so, explain how that "happened", except as a hoax. Note further that, while Israel was accused of a "Precision" strike, no one is claiming that a precision guidance system was found with the more-or-less intact forward half of the bomb. Hence, no "precision" strike. Wake up.
U.S. State Dept. condemns 'vicious terrorist attack' that killed Palestinian infant (Haaretz)
from the article: Report: UN evidence counters Israel's account of Gaza war