The war against terrorists require weapons that can destroy targets in densely populated urban areas — without causing unnecessary damage to the surrounding neighborhood; the U.S. military has developed the new FLM (Focused Lethality Munition) bomb which will use a composite (carbon fiber) casing and replace some of the normal 127.2 kg (280 pounds) of explosives with 93 kg of explosives surrounded by high density filler (fine tungsten powder)

Many building materials — like cement and brick — are extremely porous; getting contaminants off surfaces like these is difficult, since they can inhabit cracks and pores; cleaning up chemical-contaminated structures can be difficult, costly, and time-consuming; what if terrorists attacked an urban center with chemicals? Researchers say the answer is to use laser to decontaminate an area after a terrorist attack or an industrial accident

In advance of the June-July 2010 World Cup tournament, South Africa this weekend is conducting a comprehensive aviation security drill; the exercise will resemble security precautions which will be put in place during the soccer event, which begins 11 June; an expansive security envelope will be established around the stadiums where the games are played, and other air travel restriction will go into place; the drill this weekend will examine how the SA security forces respond to various violations of these security rules

There is a lot of weapon-grade nuclear material in the world — 1,600 tons of HEU and 500 tons of separated plutonium; keeping these stockpiles safe will take more than barbed wire; one method is a seal for HEU fuel rods with a pattern of flaws visible on ultrasound scans that cannot be removed without leaving telltale signs; the seals were installed last year in Romania and Pakistan; scientists work on other detection and safety methods

The Israeli security authorities are now alerting pet owners that their pets, if they look like “suspicious animals,” may be subjected to X-ray screening before boarding; if the owners refused, the pet would not be allowed on the flight; more than four million pets are flown across the world each year

The Israeli security authorities are now alerting pet owners that their pets, if they look like “suspicious animals,” may be subjected to X-ray screening before boarding; if the owners refused, the pet would not be allowed on the flight; more than four million pets are flown across the world each year

Reviews ordered by President Obama have found weaknesses in the U.S. government’s stewardship of its nuclear cache, from weapons to the ingredients and classified information that go into them; before opening the nuclear summit earlier this week, Obama said that “Unfortunately, we have a situation in which there is a lot of loose nuclear material around the world”; this is true for the United States as well

FCC will move forward on the with key recommendations in its national broadband plan — even though a federal appeals court this week undermined the agency’s legal authority to regulate high-speed Internet access; plan calls for advancing “robust and secure public safety communications networks”

The United States is replacing broad screening of all in-coming travelers with a more targeted approach; the intelligence-based security system is devised to raise flags about travelers whose names do not appear on no-fly watch lists, but whose travel patterns or personal traits create suspicions