So what is Israel implying? That they may use nuclear weapons if Arab uprisings continue?

"The Jewish state is believed to have a nuclear-weapons arsenal consisting of hundreds of warheads, but has neither confirmed nor denied their existence under a policy known as "nuclear ambiguity." The U.S. and the European Union charge Iran with clandestinely seeking to build atomic weapons, a charge Tehran denies.  "When the decision to hold this conference was adopted back in May 2010, the Middle East was quite a different place, to put it mildly," Israel's foreign ministry spokesman, Yigal Palmor, said Thursday. "I believe that the chances to get this thing going now have not exactly been improved by regional circumstances."  Discussions on establishing a Middle East free of nuclear weapons have dated back to the 1970s, when Arab states sought to diminish Israel's perceived military superiority."