The Big Question: how does the public know when the government is telling the truth about war?

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The Trump administration has warned that the United States could end up engaging in armed conflict in the Middle East. However, Americans are skeptical about going to war again, which leads to our Big Question – how can the public determine when to trust the government to tell the truth on matters of war? Katy Tur discusses with NBCNews Chief Foreign Affairs correspondent Andrea Mitchell, NBCNews Tehran Bureau Chief Ali Arouzi, and former Senior Director for the National Security Council Ned Price.