Right before an interview with Fox News on Sunday morning, US Secretary of State John Kerry was caught critiquing Israel’s handling of the ongoing conflict in the Gaza Strip on an open mic.

“It’s a hell of a pinpoint operation, it’s a hell of a pinpoint operation,” Kerry told an aide over the phone, seemingly criticizing the Israeli government’s pledge to limit the scope of its ground invasion, Politico reported.

Kerry used the same word, “pinpoint,” that was employed by Israeli Prime Minister Benjamin Netanyahu during a Sunday interview with CNN.

“There are very few examples in history of countries that have been rocketed on this scale,” Netanyahu told CNN. “If you look at our response, it’s actually very measured and trying to be as pinpointed as we can.”

Later in the phone call, Kerry added: “We’ve got to get over there…. I think John, we ought to go tonight. I think it’s crazy to be sitting around.”

Fox’s host Chris Wallace confronted Kerry on air, pushing the American politician to state whether he believed the Israeli government had gone too far in its Gaza operations.

“While you were on camera and while you were on microphone, you just talked to one of your top aides about the situation in Israel,” Wallace said.

Kerry stood his ground, and also defended Israel’s right to defend itself.

“It’s tough to have these kind of operations,” Kerry said. “I reacted, obviously, in a way that anybody does with respect to young children and civilians. War is tough. I’ve said that publicly and I’ve said it again. We defend Israeli’s right to do what it is doing.”