John Gizzi of Human events tackles the week’s biggest issues. Why does he see the latest terror threat more as luck than good government prevention? How will the politics of the Gulf of Mexico oil spill play out? How will the Greek debt crisis impact the U.S.? Which party will win the British parliamentary elections? Did David Obey retire from Congress on his own terms or because he thought he would lose? And which veteran Dems might follow his lead?