Word: uncleared
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...evidence for the ozone destruction is inconclusive, however. Because the ER-2 only collected data on a few days, it is unclear for how long the chlorine monoxide elevations last. Furthermore, the plane could not make measurements higher up in the main part of the ozone layer, the stratosphere...
...nationwide debate over excessive police violence and finally prompting Washington to take action. Last week U.S. Attorney General Dick Thornburgh announced that the Justice Department would review all complaints of police brutality received by the Federal Government over the past six years -- some 15,000 cases. Though it was unclear what steps Washington might take, Assistant Attorney General John Dunne said the immediate goal was "to determine whether there is a pattern of abuse to a high degree in any particular region or police department...
...images of people in the context of modern, industrial structures, most of these pictures downplay the importance of the surrounding elements. Instead, many explore the distorting effect that Royal's hyper-focus has upon the sense of space. In many of these images, the dimensions of the space are unclear because the background which we would normally expect to see blurred is as detailed and precise as the foreground...
...price difference was extreme -- about $2,500 a treatment vs. $220 for a dose of streptokinase -- while the advantages were murky. Several studies showed that the new drug worked more quickly to open up blocked arteries, but whether that really made a difference in patient survival was unclear...
...remains unclear just where the agitation began, or when. But by early last week it had spread through the Shi'ite heartland, which was ripe for trouble. The Shi'ites constitute 55% of Iraq's population of 19 million, but the minority Sunnis, who constitute only 20%, including Saddam and nearly all his aides, have long dominated the country politically...