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...recent Pentagon-funded reports have questioned the Navy's carrier-centric strategy. The vessel's huge cost and half-century life span give potential foes like China a "static target" to threaten, a 2007 report said. A smarter option, the study suggests, is to build a Navy of many smaller and simpler ships, which would complicate enemy targeting and give U.S. commanders better intelligence. Nonetheless, the Navy has just begun spending $11 billion to design and build the first in a new class of carriers, the U.S.S. Gerald R. Ford, scheduled to join the fleet...
...saved by killing off major programs could be diverted into less glamorous programs the military needs more: cargo and tanker aircraft, Stryker combat vehicles and small littoral ships designed for coastal warfare. Today's weapons can be radically improved with new electronics, engines and other components without having to build whole new ships, planes or tanks. The F-16's builder says the latest version of that warplane rolling off Lockheed Martin's assembly line in Fort Worth, Texas, yields "the most advanced multirole fighter available today." In fact, the hottest F-16 now in the skies is flown...
JUNE 2006 Governor Arnold Schwarzenegger convenes a special legislative session to discuss overcrowding and recidivism. He proposes a $6 billion plan to build more prison space...
...fins gradually evolved into feet, for example. But fins and feet and other complex structures are also encoded in DNA, and until the 1980s, biologists had almost no knowledge of the genes that built them. Over the past 25 years, biologists have identified many of the genes that help build embryos. A number of them help lay out the embryo's blueprint by letting cells know where they are. The cells absorb proteins floating around them, and the signals trigger the cells to make other proteins, which in turn clamp onto certain bits of DNA to switch neighboring genes...
...proteins in our hair is known as alpha-keratin. Not long ago, some Austrian and Italian researchers decided to search for alpha-keratin genes in animals that lack hair. They found those genes in chickens and lizards - which belong to the closest living lineages to mammals. Lizards build alpha-keratin in their claws. And it turns out that mammals do as well. The research suggests that the hairless ancestors of today's mammals already had alpha-keratin that was used to build their claws; only later was alpha-keratin borrowed to help build hair...