Word: wipes
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That's why NASA planetary scientist Christopher McKay, in an article in this week's Science, suggests the need for a stronger policy that ensures all exploration of Mars be "biologically reversible" - meaning we would be required to effectively wipe away our footprints and remove any possibility of contamination, by leaving behind nothing that could foster alien microbial growth. Such a policy would be especially necessary if we discover that life on Mars has emerged independently of life on Earth - what McKay calls a "second genesis" - as opposed to Martian life that arose through the exchange of meteorites between Mars...
Between 1,500 and 2,000 Rwandan troops invaded the Democratic Republic of Congo on Tuesday on a mission sanctioned by the Congolese government to wipe out ethnic Hutu militias. Lambert Mende, Congo's Information Minister, told Reuters that his government had invited the Rwandans onto Congolese soil as "observers" for an offensive against Rwandan Hutu rebels, which was expected to last about two weeks. "The operations are beginning. We have invited Rwandan officers with their security contingents for their safety. They are observers ... The operations to disarm the FDLR [Democratic Forces for the Liberation of Rwanda] are planned...
...Unlike the botched invasion of Lebanon in 2006, when Israel set itself the unattainable goal of eliminating the military capability of Hizballah, this time Barak and Olmert have made clear that their objective is not to wipe out Hamas, but instead to force the radical group to accept a durable cease-fire on Israel's terms. While they hope to weaken Hamas, Israel's leaders are aware that a military campaign is unlikely to destroy the organization that remains the most popular political force in Gaza. Any attempt to do so would require not only a massive invasion...
...even the most depressive person can find a way to make other people happy. If that doesn't sound like a movie to buoy your Christmas spirit, ask yourself this: How often do you sit through a film's closing credits so you have a little private time to wipe away the tears...
...cancer. In China, liver cancer is a huge problem. The good news is that while researchers are still working on an effective AIDS vaccine, they can vaccinate against the hepatitis B virus that causes liver cancer and the human papillomavirus responsible for cervical cancer. "Hepatitis B vaccination could potentially wipe out much of liver cancer in Africa if it is applied broadly," says Schilsky, "and the same is likely true of HPV vaccination and cervical cancer...