The ukranian president has asked for a no fly zone to stop Russian aircraft from entering his country's air space. A recent poll found that only 31% of Americans would approve of such a drastic measure. No fly zones have been used in the past during multiple conflicts, but they haven't always ended well. Hellon: If Russia vetoes an N Security Council resolution forcing it to end its invasion of Ucrania, things could quickly spiral out of control. He asks if we should be worried about russian jets flying into our airspace or are we more concerned with saving lives by shooting them down? The answer is probably not as simple as you think.