CNET News: Soaring cost estimates for protecting US borders against nuclear smuggling arrived at by the Domestic Nuclear Detection Office (DNDO) are unreliable and could result in “significant” overruns, according to a Government Accounting Agency (GAO) report. How significant? The projected cost to implement the Radiation Portal Monitor Program has gone from $399 million in 2003, when the Customs and Border Protection was in charge of the project, to $1.3 billion when DNDO took over in 2005. In 2007 the cost of equipping US ports with portal monitors was $1.7 billion. It’s now $2.1 billion. But this latest estimate fails to take into account several major “cost elements”. The true cost will be about $3.1 billion, but could go as high as $3.8 billion, according to the GAO.