Israeli Prime Minister Benjamin Netanyahu feels so strongly about imposing a "red line" on Iran's nuclear program that he demonstrated by using a magic marker to draw an actual red line on a bomb diagram during his speech to the United Nations on Thursday.

"There's only one way to peacefully prevent Iran from getting atomic bombs," the prime minister explained. "And that's by placing a clear red line on Iran's nuclear weapons program."

"Let me show you, I brought a diagram for you," he told the General Assembly as he unfolded a drawing of a bomb with a lit fuse that could have easily been mistaken for something out of a children's cartoon.

"If these are the facts -- and they are -- then where should a red line be drawn?" Netanyahu asked. "A red line should be drawn right here."

At that point, the prime minister used a large red marker to draw a thick red line at the top of the bomb near the fuse.

"Before Iran completes the second stage of nuclear enrichment necessary to make a bomb, before Iran gets to the point where it's a few months away or a few weeks away from amassing enough enriched uranium to make a nuclear weapon," he warned.

Watch this video from Fox News, broadcast Sept. 27, 2012.