Tuesday's discovery of rockets hidden in a vacant U.N. facility is the sort of evidence that Israel cites when it accuses Hamas of using civilians and their institutions as shields in the ongoing Gaza conflict. The rockets were found in a vacant school between two other U.N. schools being used as shelters for 3,000 displaced Palestinians, the United Nations said. It was the second such discovery at a vacant U.N. school in Gaza in a week. As suggestive as those discoveries are, Israel's claims that Hamas uses civilians as human shields are difficult to prove in an active ground conflict, experts say.
@highlight
Active conflict makes it impossible to prove use of human shields in Gaza, expert said
@highlight
Israel said high civilian death toll is because Hamas uses civilians as shields
@highlight
Palestinians say Israel is bombing 'a captive civilian child population'
@highlight
'It's the poor innocents that are suffering' retired U.S. general says
On the @placeholder side, 28 soldiers and two civilians have been killed in the same time frame.
"The question is that Israel is not discriminating, it is destroying the homes of people who are active (in @placeholder).