Scientists have revised their estimates on hazardous asteroid impact, saying that the Earth would only suffer a strike at that level every 1000 years rather than every 200 to 300 years. Why does this not make me feel any better?

It reminds me of those people who rebuild on a 100 year flood plain after a flood only to get put underwater the following year, who then ask where their 99 year grace period went. Just because there's a nice big number that describes the average risk, don't think you can't get hit next year or next week. Don't take things like this for granted; to quote Toby Ziegler: "You wanna tempt the wrath of the whatever from high atop the thing?".