But last week, two teams working independently reported a discovery that could help lead to a universal flu vaccine.

VOA: special.2009.03.04

Another naturalist,Alfred Russel Wallace, had independently written a paper that contained ideas similar to Darwin's concerning evolution.

VOA: special.2009.02.25

He says finding that out will be crucial. "Whether this was an act of terrorism conducted by al-Qaida central or that of a lone wolf acting independently, we will have to wait and see for the investigation and what comes out of that, but we do know that al-Qaida and their affiliates have a crazed obsession in targeting the aviation industry,"

VOA: standard.2009.12.27