This week, John Snow, Bush's former Secretary of the Treasury, claimed that one of the causes of the mortgage meltdown was that, in its zeal to increase homeownership, the Bush administration "forgot" that people had to be "able to afford their houses." Perfectly understandable. And it explains so much: Bush and company didn't mean to illegally torture prisoners at Gitmo -- they simply "forgot" torture was illegal. They didn't mean to trample civil rights -- they simply "forgot" about the Constitution. They didn't gin up phony intel to hype us into war -- they simply "forgot" that WMD had to be real. Turns out their guiding principle has been Steve Martin's classic catch-all defense: "I forgot!" So, will Bush's parting words be, "Well, excuuuuuse me!"?