Pakistan Nuclear Security Questioned

Concerns about possible thefts if the government's authority erodes or disintegrates extend to nuclear components, design plans and special materials such as enriched uranium. Twice in the past six years, Pakistan has acknowledged that its nuclear scientists passed sensitive nuclear information or equipment to outsiders -- including, in one case, members of al-Qaeda.

[an error occurred while processing this directive]

Two retired Pakistani nuclear scientists traveled to Afghanistan in August 2001 at the request of al-Qaeda leader Osama bin Laden. He pressed the scientists for details on how to make nuclear weapons, and the scientists replied with advice and crude diagrams, according to U.S. officials at the time.

Officials at the Pakistani Embassy declined to comment for this story.

Pakistan, which tested its first warhead in 1998, began developing nuclear weapons in the 1970s with help from Khan, the Pakistani engineer who years later became the leader of an international nuclear smuggling ring. Khan covertly acquired sensitive nuclear information and equipment from several European countries, helped build the stockpile and later profited personally by providing materials to Libya, North Korea and Iran.

Pakistan has repeatedly asserted that its government and army were unaware of Khan's proliferation activities until 2003. However, numerous published accounts have described extensive logistical support that military officials provided to Khan, including the use of military aircraft.

In the weeks after the 2001 terrorist attacks, the Bush administration dispatched Deputy Secretary of State Richard L. Armitage and other senior officials to Islamabad to raise the issue of safeguarding the country's nuclear arsenal. Musharraf agreed to policy changes and security upgrades, starting with the dismissal of some Pakistani intelligence officials suspected of ties to the Taliban, bin Laden's ally.

Musharraf also agreed to move some nuclear weapons to more secure locations and accepted a U.S. offer to help design a system of controls, barriers, locks and sensors to guard against theft.

Unlike U.S. nuclear arms, which are protected by integrated electronic packages known as "permissive action links," or PALs, that require a special access code, Pakistan chose to rely on physical separation of bomb components, such as isolating the fissile "core" or trigger from the weapon and storing it elsewhere. All the components are stored at military bases.

That means would-be thieves would have to "knock over two buildings to get a complete bomb," said Bunn, now a researcher at Harvard University's Belfer Center for Science and International Affairs. "Theft would be more difficult to pull off, though presumably in a crisis that might change."

Instead of allowing U.S. officials access to its weapons facilities, the Musharraf government insisted that Pakistani technicians travel to the United States for training on how to use the new systems, said Mark Fitzpatrick, a weapons expert who recently completed a study of the Pakistani program for the London-based International Institute for Strategic Studies.

Washington is confident that Pakistan's nuclear safeguards are designed to be robust enough to withstand a "fair amount of political commotion," said John Brennan, a retired CIA official and former director of the National Counterterrorism Center. The problem, he said, is that no one can reliably predict what will happen if the country slides toward civil war or anarchy.

"There are some scenarios in which the country slides into a situation of anarchy in which some of the more radical elements may be ascendant," said Brennan, now president of Analysis Corp., a private consulting firm based in Fairfax. "If there is a collapse in the command-and-control structure -- or if the armed forces fragment -- that's a nightmare scenario. If there are different power centers within the army, they will each see the strategic arsenal as a real prize."

Other nuclear "prizes" could leak more easily if the military holds together and the bombs remain in their bunkers, according to David Albright, a former U.N. weapons inspector and president of the nonprofit Institute for Science and International Security. He said individuals working inside nuclear facilities could make a quick fortune by selling bomb components or "fissile" material -- the plutonium or enriched uranium needed for building bombs.

"If stability doesn't return, you do have to worry about the thinking of the people with access to these things," said Albright, whose Washington-based institute tracks global nuclear stockpiles. "As loyalties break down, they may look for an opportunity to make a quick buck. You may not be able to get the whole weapon, but maybe you can get the core."