From this Sunday's Up With Chris Hayes, his story of the week on the fact that the rise of Rick Santorum as a front runner in the Republican primary race has forced conservatives to do something they've refused to do for the last four years; "acknowledge and wrestle with the legacy of the previous Republican president."

Tragically as Hayes pointed out, when you look at the current crop of Republican presidential candidates beating the drums for war with Iran, they've learned nothing from the debacle that was the invasion of Iraq.