"What would we be saying if Hizbullah kidnapped the Israeli Deputy Prime Minister and launched a daring raid inside Israel to disrupt a U.S. effort to resupply the Israeli Defense Force? We would be up in arms over their provocation and would be convening the UN Security Council to recommend new sanctions. Hell, we'd probably have the National Security Council in session and be ready to dispatch U.S. military forces to help Israel."
It's an interesting question as posed in this piece on AlterNet. In an article titled "Uncomfortable Truths about Israel" the author raises some pertinent questions arising out of Israel's actions both pre and post the recent war with Hezbollah. Read the piece here.