What the ex mossad chief said may or may not have been foolish, but whether it will change anything is doubtful. For 5 - 10 years, there has been a possibility of a strike on Iran, but it has not occurred yet, at least not a conventional one. And perhaps Dagan is planning a career in politics - and testing the water by inviting the journalists. And in the game of espionage, you always keep your opponent guessing. So Dagan is only playing his speciality game, better than Shavit can.
4 UN peacekeepers injured in Sinai and taken to hospital in south Israel (Haaretz)
from the article: Dagan brought a possible attack on Iran closer