9/11 Conspiracy    9/11 Truth    War on Terror   

[UPDATE] A few things are worth noting. "9/11 Conspiracy" and "9/11 Truth" do not show up in the news reference volume. Also, "9/11 Conspiracy" doesn't show up until almost 2004. Now, look at this old Slashdot post, Google Censors Abu Ghraib Images. It makes me think that at some point in time, the evidence wasn't available on Google, and that's why the trend didn't show up.

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