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There is an official U.S. time, determined concurrently by the National Institute of Standards and Technology and the U.S. Naval Observatory. Both operate atomic clocks, which are capable of calculating the exact time within an infinitesimally small degree through a process that uses microwaves to manipulate cesium atoms. These clocks are publicly available, both at time.gov and over radio airwaves. GPS systems also carry on-board, constantly updated atomic clocks. (See the top iPhone applications...
...following text appears within a chart. Please see hardcopy or PDF for actual chart...
...points out that if the Pebble Mine is built, it will produce billions in precious-metal wealth and create needed jobs [July 27]. But at what cost? Experts say it will foul the air and water and hurt salmon runs, among other atrocities. And the benefits will be exhausted within 50 years. I'm all for a sustainable resource like fish, which will bring jobs and provide profits for many more years to come. Also, there's great potential to earn cash through things like solar cells, especially in the land of the midnight sun. Maybe we can reconcile traditional...
...worst performances ever" by a national political candidate (Balz and Johnson report that Palin put off preparing for the interview, oddly, to focus on completing a written questionnaire for a small Alaska newspaper, the Mat-su Valley Frontiersman). The Alaska governor touched off such turmoil and animosity within the campaign that, when it came to judging the varied allegations against her, the authors found that "determining the truth was impossible...
Iran's current enrichment efforts are monitored by IAEA inspectors and certified as within permissible limits. The U.S. Director of National Intelligence, Admiral Dennis Blair, recently wrote to Congress that "it is unlikely that Iran will have the technical capability to produce [weapons-grade uranium] before 2013". Blair added that U.S. intelligence believes Iran has not yet decided whether to produce weapons-grade materiel, and would be unlikely to do so while its nuclear effort remains under international scrutiny. But with hawks painting Iran's nuclear program as a grave and gathering danger and the Israelis threatening to take preemptive...