By SHAUN WATERMAN
UPI Homeland and National Security Editor WASHINGTON, Sept. 17 (UPI) -- Lawmakers heard calls Tuesday for the Department of Homeland Security to be stripped of its lead responsibility for protecting U.S. computer networks.

WASHINGTON, Sept. 17 (UPI) -- The U.S. Homeland Security Department since its inception has overseen about $15 billion in failed contracts, congressional information revealed Wednesday.

WASHINGTON, Sept. 11 (UPI) -- The U.S. Homeland Security Department plans to run all incoming air cargo through radiation detectors at the nation's airports, the agency has announced.

WASHINGTON, Sept. 11 (UPI) -- Cost overruns and other problems make it unlikely that the 670-mile fence along the U.S. Southwest border will be finished by year's end, officials say.

WASHINGTON, Sept. 10 (UPI) -- U.S. Homeland Security Secretary Michael Chertoff, on the eve of the anniversary of the Sept. 11, 2001, terrorist attacks, Wednesday warned against complacency.

WASHINGTON, Sept. 9 (UPI) -- The FBI's backlog of immigrant name checks has been whittled down by 65 percent in recent months, the U.S. Department of Homeland Security said Tuesday.

By SHAUN WATERMAN
UPI Homeland and National Security Editor WASHINGTON, Sept. 9 (UPI) -- A House committee Tuesday heard from an unusual witness -- an 8-year-old boy whose name appears on the U.S. government's terrorist watchlist.

ST. PAUL, Minn., Sept. 4 (UPI) -- John McCain knows America and the world's security and prosperity are linked, former Pennsylvania Gov. Tom Ridge told Republican delegates in St. Paul, Minn.

WASHINGTON, Sept. 3 (UPI) -- Sen. Joe Lieberman's speech to Republican delegates in St. Paul, Minn., may have shut the door with Democrats, the Senate majority leader's office said.

BARROW, Alaska, Sept. 2 (UPI) -- U.S. Coast Guard officials say they are increasing their Arctic presence to increase safety in a region of melting icecaps and increasing maritime activity.

NEW ORLEANS, Aug. 30 (UPI) -- U.S. Homeland Security Secretary Michael Chertoff is going to New Orleans as Hurricane Gustav churns into the Gulf of Mexico, Chertoff's spokeswoman says.

LAUREL, Miss., Aug. 28 (UPI) -- Hundreds of immigration arrests in Laurel, Miss., have intensified the debate over U.S. workplace regulations, employment officials say.

WASHINGTON, Aug. 25 (UPI) -- The U.S. Department of Homeland Security has assigned a special designation for the Democratic and Republican National Conventions to ensure security.

WASHINGTON, Aug. 25 (UPI) -- A U.S. Homeland Security Department plan requiring three-day advance notice from foreign fliers would be bad for business, say airline leaders.

LINDON, Utah, Aug. 20 (UPI) -- Utah-based Luxul Wireless says its frequency-translating amplifier technology can now be used for secured military and homeland security signal transmission.

WASHINGTON, Aug. 20 (UPI) -- Monday is the deadline for comments on a new information system that will store data for 15 years on citizens who pass through U.S. border checkpoints.

ORLANDO, Fla., Aug. 20 (UPI) -- The United States has provided greater support for veterans and modernized military tactics for the war on terror, U.S. President George Bush said Wednesday.

WASHINGTON, Aug. 19 (UPI) -- Construction of "virtual fences" on the U.S.-Mexican border has stopped because a U.S. agency has not given permission for surveillance towers, officials say.

IRVING, Texas, Aug. 19 (UPI) -- The U.S. Department of Homeland Security has awarded a task order to EF Johnson Technologies Inc. for the company's submersible radio technologies.