Israel has no realistic military option against Iran (with US disapproval), other than a nuclear strike which is unacceptable before the Iranians have a nuclear weapon and are ready to use it. The distance to Iranian nuclear installation is bigger than what the roundtrip range of the most capable Israeli plane can do without midair refueling. (Where?) The installations are also well dispersed and some locations may be unknown. For this reason I find it hard to believe that Barak the realist is seriously considering such a strike. I think that what unites him with Netanyahu is sitting around the government's table as Minister of Defense.
British Airways flight diverted to Canada after bomb threat (AP)
from the article: Military strike on Iran is what unites Netanyahu and Barak