Appearing on ABC’s “This Week” this morning, Sen. John Kerry labeled John McCain a “radical” because he picked Sarah Palin to be his running mate. Asked to defend this charge, he compared her to Dick Cheney, (wrongly) accused her of not believing in anthropogenic global warming, and then said the pick was irresponsible because she has no experience in foreign affairs. Hmmm . . . how much foreign policy experience did John Edwards have?