A daring Michele Bachmann appeared on “The Tonight Show with Jay Leno” and faced grilling questions on the HPV vaccine, gay marriage and homosexuality. As the liberal host of the late night talk show thanked the GOP presidential hopeful for being a “good sport,” he said, “We’ve done a million jokes. Hopefully, you haven’t been watching any of them.” However, soon thereafter Leno appeared unusually serious as he threw questions at Minnesota Congresswoman Bachmann. Leno’s first question Friday evening concerned Bachmann’s attacks on Texas Gov. Rick Perry for supporting the HPV vaccine. “Is that bad? It’s a vaccine to prevent...