3rd package ignites at postal facility

Maryland State Police spokesman Greg Shipley, right, holds up a copy of a photo of a letter that was mailed to Maryland Gov. Martin O'Malley, in Annapolis, Md., on Thursday during a news conference outside the Jeffrey Building. At left is A.J. McAndrew with Maryland State Police field operations.
Maryland State Police spokesman Greg Shipley, right, holds up a copy of a photo of a letter that was mailed to Maryland Gov. Martin O'Malley, in Annapolis, Md., on Thursday during a news conference outside the Jeffrey Building. At left is A.J. McAndrew with Maryland State Police field operations.

WASHINGTON (AP) - A package addressed to the U.S. Homeland Security secretary ignited Friday at a postal facility, and authorities said it was similar to fiery parcels sent to Maryland officials a day earlier by someone complaining about the state's terrorism tip line.

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The suspicious package was discovered by an employee at the D.C. facility when it began popping and smoking, and it emitted "a brief flash of fire" before extinguishing itself, D.C. Police Chief Cathy Lanier said. The details were very much like what Maryland authorities described Thursday after workers at state government buildings opened the book-sized packages. There, the workers' fingers were singed.

It's not clear what ignited the package at the D.C. processing facility because the worker didn't open it, Lanier said. No one was injured.

Authorities were bracing for more packages to surface.

"Right now we don't have any other packages, but we're not taking anything for granted," Lanier said.

The D.C. package was addressed to Homeland Security Secretary Janet Napolitano, according to a department official who spoke on the condition of anonymity because of an ongoing investigation. The parcel ignited in northeast Washington about 2:45 p.m. Authorities wouldn't say whether it contained a note.

In July, Napolitano launched a nationwide "see something, say something" campaign. Her recorded voice can be heard in Washington-area Metro stations, reminding commuters to report suspicious behavior.

The Maryland packages had a message railing against highway signs urging motorists to report suspicious activity by calling a toll-free number. The message read: "Report suspicious activity! Total Bull----! You have created a self fulfilling prophecy."

The state's terrorism tip line is widely shown on overhead highway signs along with information about missing children. To the ire of some drivers, the signs added real-time traffic estimates to major highways in March. Some commuters complained drivers slowed to read the signs and backed up traffic. At Gov. Martin O'Malley's request, the state studied the issue and removed the real-time postings from one congested area on the Capital Beltway. There are 113 signs statewide.

The earlier packages, addressed to O'Malley and to Transportation Secretary Beverley Swaim-Staley, have been taken to the FBI lab in Quantico, Va., for forensic analysis, and Lanier said the D.C. package would also be sent there.

The packages did not contain explosive material. Officials have declined to speculate on whether the incendiary devices worked as intended or were supposed to cause more harm.

Leo W. West, a retired FBI explosives expert in Virginia, said he didn't have much information on the design of the packages, but generally, if there's no explosive, the devices aren't meant to cause much destruction.

"With an incendiary, you have a slower process involved," he said. "It can burst into flames, but unless it's something that's a liquid that's expelled ... you wouldn't have that sort of immediate danger to the person."

At least initially, West said it seems the packages are meant to get the attention of officials.

The Maryland mailings were opened within a 15-minute period Thursday at buildings 20 miles apart. Mailroom employees around the state were back at work Friday, and they had pictures of the packages and were advised to be vigilant about anything suspicious.

The Postal Service rereleased a safety talk on how to recognize suspicious mail Friday in light of the incidents, American Postal Workers Union spokeswoman Sally Davidow said.

Investigators had no previous indication the packages would be sent anywhere other than Maryland government buildings, FBI spokesman Richard J. Wolf said.

Police have not yet identified any suspects and were searching for disgruntled people who've made threats against state government. Anyone arrested would be charged with possession and use of an incendiary device, which includes a maximum penalty of 20 years in prison, authorities said.

The state terrorism tip line averages about two calls per day, said Jim Newton, privacy officer at the Maryland Coordination and Analysis Center, where police officers field the calls.

Neither Newton nor police were aware of any repeat, angry callers to the tip line.

The call volume typically doesn't spike when the phone number is displayed on highway signs, he said. Instead, calls tend to come in after terrorism cases make news.

Postal inspectors said they had a variety of ways to determine where a package is mailed from, including postmarks and cancellation stamps, which can indicate where a piece of mail was processed.

Postal Inspector Frank Schissler said, but the Maryland packages did not have individual tracking numbers because they were sent by first-class mail, not registered mail or express mail.

In 2001, as the nation was still reeling from the 9/11 attacks, letters containing anthrax were sent to lawmakers and news organizations. The anthrax spores killed five people and sickened 17.

Dangerous devices sent through the mail remain extremely rare, inspectors said, with 13 such cases reported since 2005.

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Nuckols reported from Pikesville, Md. Associated Press writers Alicia Caldwell, Eileen Sullivan, Randolph E. Schmid and Brett Zongker in Washington and Sarah Brumfield in Baltimore contributed to this report.