"Magic number" for space pioneers calculated: a University of Florida anthropologist has calculated the minimum number of passengers needed on a generation starship in order to sustain a viable community. [via Boing Boing]
U.S. Tightening Rules on Keeping Scientific Secrets: Britain isn't the only country limiting scientific publication as part of the WoT.
The Bush administration is taking wide measures to tighten scientific secrecy in the hope of keeping weapons of mass destruction out of unfriendly hands.
Last month, it began quietly withdrawing from public release more than 6,600 technical documents that deal mainly with the production of germ and chemical weapons. It is also drafting a new information security policy, to be released in the next few weeks, that officials say will result in more documents' being withdrawn. It is asking scientific societies to limit what they publish in research reports.
Al Qaeda's Road Paved With Gold: on the role gold and Dubai's financial system played in the movement and laundering of money for al Qaeda and the Taliban.
Doomsday UK: an excerpt from Peter Hennessy's book The Secret State discusses the British nuclear deterrent in the cold war and today.
Protection for Oil Pipeline Raises US Profile in Colombia: more on the new U.S. assistance to Columbia in protecting Occidental's oil pipeline from the ELN and FARC. [via Robot Wisdom]