That makes it tougher to target, separate out and kill viruses without also killing the cells they have infiltrated.

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"You don't have to form a snake-killing committee to kill a snake, " says Thomas Zimmerman, the plant's UAW chairman.

FORBES: Labor Riddle

Mr Justice MacDuff told the jury Green admitted the unlawful killing of Lia but without the intent to kill.

BBC: Lia Green

Leveling up my alien one gloriously earned kill at a time until I realized I was becoming quite the proficient killing machine.

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The accused shooter, Jared Lee Loughner, 22, is in custody and has been charged by federal prosecutors with attempted assassination of a member of Congress, two counts of killing an employee of the federal government and two counts of attempting to kill a federal employee.

FORBES: Question To Gabrielle Giffords' Alleged Shooter: Why'd You Do It?

The crazy ants, officially called "Tawny crazy ants, " are omnivores that can take over an area by both killing what's there and starving out what they don't kill, said Ed LeBrun, a research associate with the Texas invasive species research program at the Brackenridge Field Laboratory in the College of Natural Sciences.

CNN: 'Crazy ants' a threat in southern U.S.

Silver is known to kill bacteria, but the addition of an electric current makes the process even more effective, killing up to 98% of bacteria.

CNN: Nanotech and 'tea bag' to clean up drinking water

It is estimated that the Trump boys dropped a cool 100K just for the pleasure of killing as many animals as they could and for the safari operator, the more they kill, the more profit they make.

FORBES: TMZ Is Wrong About Donald Trump Jr. and Safari Hunting