Why now, Israeli spy?

Instapundit posted a Tom Maquire link on the espionage investigation in the Defense Department. The timing of the story could be the convention but most probably it is aimed at the elections. It might be helpful to remember the Israeli spies in New Zealand story that had legs for weeks, long enough for the NZ Left to stir up enough hatred to cause anti-semitic attacks that they quickly had to counter with a resolution condemning anti-semitism. Then it seem to die off very quickly. It was, however, a very public overreaction applauded in electronicinfida. But this seems to be the incentive for Helen Clark's actions. I suspect it is also the cause of the "Israeli spy in the Defense Dept. story, too.