Precious Metals – Week of 4.4.10

By Neil Gershenfeld A new digital revolution is coming, this time in fabrication. It draws on the same insights that led to the earlier digitizations

Photo By: Merrick Davies View Article

U.S. Army soldiers board a helicopter as they leave after the end of their one-year deployment in Kunar province, eastern Afghanistan, in March 2012. PHOTO:

**Note: We are republishing each of the 22 challenges from Catherine’s fiscal cliff article – one a week. Helps to digest them bit by bit!**

By Rady Ananda Urges USDA to rescind approval of genetically engineered alfalfa: “In layman’s terms, it should be treated as an emergency.” A plant pathologist