Israel is a Democracy. If the government orders the IDF to attack Iran, the army will OBEY. The principle is that the civilian government decides what to do, and the army then comes up with the way to do it. Of course, the cabinet normally asks the army for advice, but does not need to follow it.
Three homemade bombs in Egypt's Alexandria wound two (AP)
from the article: Dagan was right about the Palestinians but wrong about Iran