The US is investigating a leak of highly classified intelligence regarding Israel’s preparations for an operation to retaliate against Iran following an attack earlier this month, according to CNN. Three sources familiar with the matter confirmed the information about the leak. One of the sources verified the authenticity of the documents. “The leak is deeply concerning,” the US official told CNN. Dated October 15 and 16, the documents began circulating online on Friday, October 18, after being posted by a Telegram account called Middle East Spectator. They carry a top secret classification an…