In Error, B-52 Flew Over U.S. With Nuclear-Armed Missiles

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By Josh White
Washington Post Staff Writer
Thursday, September 6, 2007

An Air Force B-52 bomber flew across the central United States last week with six cruise missiles armed with nuclear warheads that were mistakenly attached to the airplane's wing, defense officials said yesterday.

The Stratofortress bomber, based at Minot Air Force Base in North Dakota, was transporting a dozen Advanced Cruise Missiles to Barksdale Air Force Base in Louisiana on Aug. 30. But crews inadvertently loaded half of them with nuclear warheads attached.

Air Force officials said the warheads were not activated and at no time posed a threat to the public. But a timeline of the episode supplied by the Air Force yesterday to House and Senate lawmakers indicated that the missiles in question sat on a runway in Louisiana for nearly 10 hours before workers noticed that the nuclear warheads were inside.

Military officials also said they were concerned that the warheads were unaccounted for several hours while the missiles were in transit. The missiles never left Air Force control, they said.

The cruise missiles -- part of an Air Force fleet of more than 400 of their kind -- are being retired and usually would not carry nuclear warheads while being transported. Defense officials said the B-52's mission last week did not include training runs, so the missiles were never meant to be launched. The cruise missiles have a range of about 2,000 miles and are designed to hit precision targets well behind a potential enemy's lines.

Two defense officials said it is unclear how stringent safeguards for the handling of nuclear weapons were skirted, allowing the missiles with the warheads to be loaded onto a pylon that was then attached to the underside of the B-52's wing. Air Force officials said the mistake was a serious breach of rules and that an investigation began immediately.

Senate Armed Services Committee Chairman Carl M. Levin (D-Mich.) and Sen. John McCain (Ariz.), the panel's ranking Republican, yesterday jointly called the episode "a matter of grave concern" and, in a letter to Defense Secretary Robert M. Gates, requested an investigation of the incident by the Pentagon's inspector general.

The aircraft's pilots and other crew members were unaware that they were carrying nuclear warheads, officials said. "Essentially, this is an issue of a departure from our very exacting standards," said Lt. Col. Edward Thomas, an Air Force spokesman at the Pentagon, who declined to confirm that nuclear warheads were involved. "The Air Force maintains the highest standards of safety and precision, so any deviation from these well-established munitions procedures is very serious, and we are responding swiftly."

The incident, first reported by the Military Times, prompted senior leaders to relieve a munitions squadron commander of his duties. Other airmen have been temporarily suspended from duties.

"Nothing like this has ever been reported before, and we have been assured for decades that it was impossible," said Rep. Edward J. Markey (D-Mass.), co-chairman of the House Bipartisan Task Force on Nonproliferation. "The complete breakdown of the Air Force command and control over enough nuclear weapons to destroy several cities has frightening implications not only for the Air Force, but for the security of our entire nuclear weapons stockpile."

The Air Force's Air Combat Command has ordered a stand-down for its bases next week to review procedures and prevent a repeat of the mistake. "All evidence seems to point to this being an isolated mistake," Thomas said.

Geoff Morrell, a Pentagon spokesman, told reporters at a news conference yesterday that Gates was informed of the incident early last Friday and has been receiving daily progress reports. Morrell said President Bush was also notified.

In a statement yesterday, Rep. Ike Skelton (D-Mo.), chairman of the House Armed Services Committee, said he found the reports "deeply disturbing."


© 2007 The Washington Post Company

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