Dan Shapiro and Dennis Ross quoted in The New York Times article, “The Secret History of the Push to Strike Iran”
"... Some American military planners derided Barak’s tactic as 'mowing the grass' — a small-bore effort that would need to be repeated again and again — but it might have been more like a way to get the United States to move first. 'Barak would tell us, "We can’t do what you do, so we need to do it sooner,"' says Dennis Ross, who handled Iran policy at the National Security Council during Obama’s first term. 'We interpreted that as designed [...]