What, then, to make of its sudden removal last week under cover of dark?
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Under cover of darkness, this small elite unit launched an airborne assault deep into insurgent-held territory.
The supplement makers who engage in this type of sleight-of-hand often operate under cover of semi-anonymity.
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Short-sellers tend to move under cover of darkness, launching stealthy guerrilla raids on stocks they deem ready for a fall.
More than 4, 000 US marines, 1, 500 Afghan soldiers and 300 US soldiers moved in by helicopter under cover of night.
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Last Sunday, rebels said the defenders broke through the siege lines to receive a much-needed delivery of supplies under cover of darkness.
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It has turned down talks with America under cover of a regional dialogue that would involve South Korea, Japan, China and Russia too.
But - astonishingly - some diplomats and UN officials in this region (speaking of course under cover of anonymity) give the theory some credence.
India has said its 2, 000-2, 500km-range Agni missile is now ready for deployment, and it may be developing an intercontinental-range missile under cover of its Russian-assisted space programme.
No other film artist operated as skillfully as he did under cover of darkness, and this seventy-nine-minute film noir from 1948 shows off his night vision at peak power.
At the start of the war, the stud moved east toward Russia to escape the advancing Germans, all the horses trotting under cover of night to escape the strafing aircraft.
Just a few hours ago they took off to drop more than 1, 000 paratroopers under cover of darkness over northern Iraq to secure an airfield in the area controlled by the Kurds.
It would effectively prevent the federal government from compelling anyone "engaging in journalism" to give testimony or produce any document revealing that journalist's source, if the source gave the information under cover of confidentiality.
Although his report was triggered by tales of televangelists running lucrative things such as recording studios and selling oil and gas under cover of the religious exemption, it highlights a serious regulatory failure at the heart of America's charitable sector.
The data that he and his team have collected suggest the animals plan their moves with guerrilla-like precision, sprinting from the safety of one game reserve to another under cover of darkness and spending as little time as possible in the poacher-infested areas in between.
Watson eventually left the harbor, under cover of fog, and he was later arrested on an ice field where the hunt was taking place. (Since 1977, it has been a crime in Canada to observe the seal hunt without a permit.) His ship was confiscated, he was charged with conspiring to commit mischief and extortion, among other crimes, and he spent several days in jail.
The slaves and the freedmen who rode an underground railroad, seeking the light of justice under the cover of night -- they weathered a hard winter.
As we all know, in India some of life's most treasured moments are often celebrated under the cover of a beautiful tent.
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For at least three years European bankers and ministers have abjectly avoided the courageous act of facing up to their bad debts, which are largely sovereign notes issued under the cover of a single currency and held by mostly Euro banks as prime credits.
Now 37, she recalls getting an ego boost after losing a significant amount under the cover of winter clothing.
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President Harry Truman was right to commit the U.S. (under the cover of the United Nations) to defend South Korea.
"Their cowardly actions, carried out under the cover of darkness, are in stark contrast to the bravery demonstrated on the battlefields by our war heroes, " he said.
Several Western speakers with the same message defensively stressed that Asia isn't being force-fed "Anglo-Saxon" formulas under the cover of international rules of the game.
Vintners in the 1870s sold hooch to miners, and again during Prohibition, when bootleggers here ran wine into Los Angeles under the cover of night.
Three helicopters initiated a heated gunbattle with captors under the cover of darkness in the town about 75 miles northwest of the capital Mogadishu, eyewitnesses said.
"FSB counter-intelligence agents detained a CIA staff member who had been working under the cover of third political secretary of the US embassy in Moscow, " the FSB said.
He said he first met Mandela when he was brought "under the cover of darkness" to his office from a prison where the longtime activist was being held.
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