Singling out Israel?

"Arab states in the United Nations nuclear assembly on Friday won narrow approval of a resolution urging Israel to put all its atomic sites under the world body's inspection and join the Non-Proliferation Treaty. Israel deplored the measure for singling it out while many of its neighbors remained hostile to its existence, and said it would not cooperate with it." Why is Israel being singled out when all of Israel's Arab neighbors have nuclear weapons. How true.