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Handling deadliest substances is all in a day's work


By Douglas Birch
Sun Reporter

Originally published December 10, 2006

He's been called one of the U.S. Army's premier chemical weapons experts, and has worked around the world to disarm rockets, bombs and shells containing some of the world's most toxic substances.

When it comes to handling and defusing weapons of mass destruction, Timothy A. Blades, a 31-year veteran of the Edgewood Chemical Biological Center, has few peers. "Tim has handled every dangerous and deadly and lethal compound known to man," said Jim Allingham, a retired spokesman for Aberdeen Proving Ground, where the Edgewood center is located.

William E. White, a retired Edgewood chemist, called Blades "an amazing person," as comfortable taking apart a chemical warhead as he is testifying before Congress.

At the Harford County military post, he has helped direct the disposal of tons of obsolete U.S. chemical arms. He and his crews have worked at poison arms depots, dump sites and disposal areas around the world. As a U.N. weapons inspector in the 1990s, he made 42 trips to Iraq.

At Aukheider, near the Iraqi city of Karbala, he drilled mustard gas bombs cooled by ice. He came to admire the resourcefulness of Iraqi weapons scientists. "They made mustard agent in an incredibly elegant way that was so simple," he recalled.

At Kamisiyah in southern Iraq, he supervised the destruction in 131-degree heat of 1,000 sarin-filled rockets that the Iraqis had incompletely burned and abandoned. In the United States, with its strict environmental standards, the project would have taken years and millions of dollars, he said. In Iraq, it took six days, with Blades and his crew working in lightweight protective gear because of the heat.

He has helped destroy stockpiles of aging Soviet chemical weapons in Romania, the Czech Republic and -- in recent months -- Albania.

As deputy director of Edgewood's Chemical Biological Services Directorate, Blades supervises a staff of 244 technicians and weapons experts from a small office in a one-room building, nicknamed "The Condo," on King's Creek in an isolated corner of the base.

Some of Blades' resume is classified. A glass case in his office includes a 1998 commendation from then-CIA director George Tenet. "That's probably something I don't want to talk too much about," said Blades, 50.

Blades' embrace of dangerous work owes something to the lessons he learned from his father, a Maryland State Police trooper. His dad would bring home traffic safety films that graphically depicted accident scenes and projected them on the living room wall. The point, Tim Blades said, was: "Life's got risks. You just have to deal with it."

After graduation from Bel Air High School, Blades took a job at Edgewood Arsenal in 1975 for $1.25 an hour. Originally, he worked on an environmental cleanup project at Edgewood's old Pilot Plant, which made small quantities of nerve gases and other toxic agents for medical and technical tests.

He felt comfortable in a chemical moon suit, and wasn't scared of the poisons. Over the years, he learned what the world's most toxic chemicals smell like: Mustard has the odor of sulphur and creosote; Lewisite evokes geraniums; soman, Blades thinks, has the fragrance of Juicy Fruit gum. (When his crews work on soman, they're forbidden to chew that brand of gum.)

Twice, Blades has been injured by exposure to deadly chemicals. In December 1975, he was making hydrogen fluoride, a chemical precursor for a nerve agent, when some spilled on his arm. He still bears scars.

In 1979, he inhaled the nerve agent sarin after someone accidentally tracked it into a changing room. He vividly recalls his pupils shrinking to pinpoints, and a "dead-cat-in-the-stomach nausea -- unlike any nausea you've felt before."

In a frantic effort to save his life, co-workers sprayed him with a hose, naked, on an Edgewood lawn. He was rushed to a military hospital, where doctors saved his life.

During his career, he has disarmed, dismantled and disposed of scores of chemical weapons. None, he recalled, had ever behaved like an Iraqi chemical shell that he and a colleague, Frank Evans, 50, were asked to analyze last May.

The shell sat in a protective steel box equipped with chemical-proof gloves and a sealed glass window. Equipped with a power drill purchased in a local hardware store, the two men worked inside a closet-sized, blast-proof chamber. The chamber sat inside a 60-by-60 foot concrete bunker, under negative air pressure and hooked up to a massive air filtration system.

Blades and Evans wore only lightweight protective suits and masks. (Blades never wears a flak jacket when working close up with explosives, he said, because if he made a serious mistake the jacket wouldn't in the end make much difference.) With the Iraqi shell, the trick was to drill deep enough to pierce the weapon's steel skin, but not so deep as to hit the explosive core. As Blades carefully punctured the warhead, a yellow mix of sarin and cyclosarin, super toxic nerve agents, sprayed into the box.

The two men were among the most experienced poison arms experts working for the U.S. Army, but neither had ever seen a chemical weapon act like a seltzer bottle before.

The glove box should have protected them. But a mist of nerve agent seeped into their small steel chamber. Somehow, the ventilation hose attached to the glove box wasn't pulling air into the lab's massive filtration system.

The leak posed no threat to anyone outside the concrete bunker. Inside the chamber, the only things between these lethal agents and Blades and Evans were their chemical-proof jumpsuits the thickness of a sports shirt, their gloves, boots and gas masks equipped with charcoal filters -- and five minutes of air in emergency tanks on their backs.

The gear would prevent exposure to traces of agent. But the two men were not protected from droplets or puddles of agent, which could form on the cubicle's surfaces.

Blades did not panic. Tests, he said, have shown that when he is faced with a critical task, his heart rate actually drops.

Although he does not enjoy taking unnecessary risks, he says he gets a certain satisfaction from work that includes what he called "the possibility of catastrophic failure.

"It definitely focuses your attention on just what you're dealing with," he says. "You get very attuned to the problem at hand."

The pair put down their tools, unbolted the steel chamber door, left the concrete bunker and entered an adjacent decontamination chamber. There, two Edgewood colleagues in protective moon suits scrubbed Blades and Evans down with bleach and hot water.

Moving into a second room, Blades and Evans waited for several minutes, wondering if they had been exposed, while chemical sensors sniffed the air. When no contamination was found, the pair shed their light protective clothes. Neither man showed symptoms of exposure.

In a third room, they put on heavy butyl-rubber suits with large air tanks. Then they returned through the decontamination chambers, into the the contaminated blast-proof cubicle to clean up, and to finish the job.