Civilian deaths are indefensible, whether done by Hamas or Israel | Rajan Menon
(www.theguardian.com)
Obama changed the military's criteria for civilian deaths so he could pretend his numbers were lower.
I don't know that I'd call it an opinion. Civilian deaths are an eventuality we have no choice but to accept, especially here in the US, where we're making war in six, seven, or eight countries at once and it's normal.