The White House appeared to mock Israeli Prime Minister Benjamin Netanyahu on social media Wednesday, employing a cartoon bomb similar to an illustration used by Israel's leader to warn against a nuclear Iran.The image of the bomb, complete with a red line near the top, is virtually identical to that used by Netanyahu during a 2012 United Nations speech on the dangers of Tehran acquiring such a weapon."At this late hour there is only one way to peacefully prevent Iran from getting atomic bombs," Netanyahu said in his address at the time. "And that is by placing a clear red...