It would be an act of mercy for the planet were Jimmy Carter to hang up his carry-on bag and devote the rest of his days to annotating his post-presidential grocery lists, or maybe sign up for Dancing With the Stars — anything where he might at least do no more harm. Instead, in some eternal quest to live out that second presidential term which American voters in their belated wisdom snatched from him in 1980, Carter goes on and on, glad-handing thugs and hugging terrorists, from Caracas to Gaza to Havana. According to recent news reports, he’s now planning...