Michael Borshuk

At a campaign appearance in Florida last month, Santorum declined to correct a voter who called Obama, a Christian, an "avowed Muslim." 

Santorum told CNN after that incident, "I don't feel it's my obligation every time someone says something I don't agree with to contradict them, and the president's a big boy, he can defend himself."

See, I do not expect Rick Santorum to "defend" his political opponents.  Such would be a ludicrous expectation in this contentious electoral climate.  But, I am immensely troubled that in Rick Santorum's America, it's just A-okay to walk around being ignorant and misinformed.  Your obligation to correct your homeboy, Rick, was less about agreeing or disagreeing, but about being true to information you know to be right in the face of error.