Is Planetary Defense a U.S. Issue – or a Global One?

Tracking of Killer Asteroids Runs Low on Money and Short on Time, NY Times

“William Ailor of the Aerospace Corporation, a not-for-profit Air Force research group that sponsored the planetary defense conference, said the problem of finding killer asteroids could be solved more easily if more countries were involved. Interest is growing, he said, noting that the European Space Agency is considering a mission called Don Quijote to test ways to deflect an asteroid. “Should one nation, the United States, be responsible for the entire planet?” Mr. Ailor asked.”