Yep, the US Rolled Over

Here's the official response:

The United States is deeply disturbed by the recent violence and regrets the tragic loss of life and injuries suffered among those involved in the incident last night aboard the Gaza-bound ships.  We are working to ascertain the facts.  We expect a credible and transparent investigation and strongly urge the Israeli government to investigate the incident fully.As I stated in the Chamber in December 2008, when we were confronted by a similar situation, mechanisms exist for the transfer of humanitarian assistance to Gaza by member states and groups that want to do so.  These non-provocative and non-confrontational mechanisms should be the ones used for the benefit of all those in Gaza. Direct delivery by sea is neither appropriate nor responsible, and certainly not effective, under the circumstances.
The United States remains deeply concerned by the suffering of civilians in Gaza, and the deterioration of the situation there, including the humanitarian and human rights situation.  We continue to believe the situation is unsustainable...

The rest is inconsequential babble about the peace process that Bibi could give a shit about.
Definitely a roll-over. Did not mention the piratical nature of the attack, did not condemn the Israelis for either violating their RoE or for having ridiculous RoE to begin with, and did not acknowledge any of the vital materiel that the Israelis are not letting through.

This might just be State boilerplate awaiting a real White House response, but I don't believe so. The lesson is clear. Netanyahu can now act however he chooses, confident that Barry will have his back. No matter what he does.