Asper has expressed what I was thinking.
Use of human shields implies that you trust the enemy not to harm them.
Israel has been justly criticised for diproportionate responses and use of cluster bombs, but the acccusation of wanton killing may have been overstated if only because it would not be in their interest.

The absurdity of my suggestion that Israel use human shields against Hamas rockets is, of course, that they are designed and intended to kill civillians anyway.