Was able to verify this here (look down left side of page):
The first item is a speech by Hillary Clinton saying that a nuclear Iran would be unacceptable to the US and to Israel.
The second item lists "Activities / Actions in Syria Unacceptable to International Community" and mentions unacceptable attacks on our Ambassador to Egypt but has "Israel/Palestine" as another heading on the same page with nothing about unacceptable actions there.
Same thing with the third item. Stuff unacceptable in Syria and Egypt, but Israel is in the same part of the world and is included in the same briefing.
Item four calls the situation in Gaza unacceptable but praises some Israeli action, so maybe it's not Israel they're ruling unacceptable. There's a question about whether Israeli home demolitions are "unacceptable" but the official doesn't give a black-and-white answer on that.
So the story is garbage based on the fact that Israel, Egypt, and Syria are included in the same briefing transcripts and any condemnation of one country in a press conference counts turns up when you search for the name of any one of the countries.