This collection contains web crawls performed as the pre-inauguration crawl for part of the End of Term Web Archive, a collaborative project that aims to preserve the U.S. federal government web presence at each change of administration. Content includes publicly-accessible government websites hosted on .gov, .mil, and relevant non-.gov domains, as well as government social media materials. The web archiving was performed in the Fall and Winter of 2016 to capture websites prior to the January 20, 2017 inauguration. For more information, see http://eotarchive.cdlib.org/. ||||| When North Korea launched long-range missiles this summer, and again on Friday, demonstrating its ability to strike Guam and perhaps the United States mainland, it powered the weapons with a rare, potent rocket fuel that American intelligence agencies believe initially came from China and Russia. 
 
 The United States government is scrambling to determine whether those two countries are still providing the ingredients for the highly volatile fuel and, if so, whether North Korea’s supply can be interrupted, either through sanctions or sabotage. Among those who study the issue, there is a growing belief that the United States should focus on the fuel, either to halt it, if possible, or to take advantage of its volatile properties to slow the North’s program. 
 
 But it may well be too late. Intelligence officials believe that the North’s program has advanced to the point where it is no longer as reliant on outside suppliers, and that it may itself be making the potent fuel, known as UDMH. Despite a long record of intelligence warnings that the North was acquiring both forceful missile engines and the fuel to power them, there is no evidence that Washington has ever moved with urgency to cut off Pyongyang’s access to the rare propellant. 
 
 Classified memos from both the George W. Bush and Obama administrations laid out, with what turned out to be prescient clarity, how the North’s pursuit of the highly potent fuel would enable it to develop missiles that could strike almost anywhere in the continental United States. ||||| Tweet with a location 
 
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– A highly volatile fuel known to the Russians as the "Devil's Venom" has been powering the success of North Korea's missile program, analysts say—and it may be too late to cut off its supply. Intelligence memos from as far back as the George W. Bush administration warn that unsymmetrical dimethyl hydrazine, or UMDH, could allow North Korean missiles to reach the US, but there was no serious effort to cut off the supply from China or Russia and officials believe the country can now produce the fuel itself, the New York Times reports. Russia has tried to avoid the potent fuel since a 1960 explosion killed more than 100 people in the worst-ever space-related disaster, and NASA switched to safer propellants decades ago. The rare fuel—which is made from chemicals, not oil—has caused other disasters and Vann H. Van Diepen, a former State Department official who long worked to prevent the spread of weapons of mass destruction, tells the Times that Pyongyang probably dealt with a few catastrophes in the process of learning to make UMDH over the last 25 years. "My guess is that the North Korean tolerance for casualties is probably pretty high," he says. The fuel and its ingredients are not included in the sanctions whose effect President Trump boasted about on Sunday. In a tweet, he called Kim Jong Un "Rocket Man" and spoke of "long gas lines forming in North Korea." (Kim says his country is nearing military "equilibrium" with the US.)