What is the truth? It's a question that comes up a lot in the news. Is Barack Obama a Muslim? Were there weapons of mass destruction in Iraq? Did 9/11 happen as we were told? Was JFK killed by a lone gun man? Were there any real instances in which Vietnam veterans were spat upon? Is there any such thing as post-traumatic stress disorder? Do certain vaccines cause autism? Is evolution a theory or a scientific truth?
I could go on.
In some cases it seems at least possible to pin down an answer. In other cases, it can at least be said that nobody can verify even one instance of a thing which people believe happened quite frequently. In other cases, we might say that the body of scientific investigation comes down squarely on one side or other, without necessarily removing all dissent or explaining every piece of outlying data.
So are all those things the same version of the truth? Are there indisputable facts?
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