Whenever you're faced with an explanation of what's going on in Washington, the choice between incompetence and conspiracy, always choose incompetence.
Truman left in the middle of an unpopular war, a war of choice. Truman didn't have to go into South Korea. And he was reviled and ridiculed for the stalemate that resulted. Now, he's seen as one of the great presidents of the 20th century.
Torture is an impermissible evil. Except under two circumstances. The first is the ticking time bomb. An innocent's life is at stake. The bad guy you have captured possesses information that could save this life. He refuses to divulge. In such a case, the choice is easy.