Israel doesn't know who spies for it

"The IDF released a statement in response to Lederman's deportation, saying that the IDF officer's mission "was to end in two months," adding that Israeli security "officials had made a thorough examination which found that espionage claims are unfounded." Hmmm, so the IDF has to make a 'thorough examination' to find out if one of its officers in Russia is spying for them? Surely they should already know that? Such terrible liars.