Nuclear weapons have proved to be a highly dangerous weapon that exceeds the force needed by any country. When nuclear weapons were first developed and used, we were not aware of their strength and power. Now that it is understand the devastation possible due to nuclear weapons, all countries should move to disarm them.
Nuclear devices should not be in Israel's possession due to the instability in the region. Without international backing in a war, Israel could easily lose and their devices could fall into the wrong hands. There is also the possibility of internal revolution, where a radical government takes control and uses the devices without dire reason.