Two of this year's inspiring TED (Technology, Entertainment, Design) Prize Winners.

"The TED (Technology, Entertainment, Design) conference is an annual event where leading thinkers and doers gather for inspiration."

Accepting his 2007 TED Prize, James Nachtwey talks about his decades as a photojournalist. A slideshow of his photos, beginning in 1981 in Northern Ireland, reveals two parallel themes in his work. First, as he says: "The frontlines of contemporary wars are right where people live." Street violence, famine, disease: he has photographed all these modern WMDs. Second, when a photo catches the world's attention, it can truly drive action and change. In his TED wish, he asks for help gaining access to a story that needs to be told, and developing a new, digital way to show these photos to the world. (Recorded March 2007 in Monterey, CA. Duration: 23:41)

As E.O. Wilson accepts his 2007 TED Prize, he makes a plea on behalf of his constituents, the insects and small creatures, to learn more about our biosphere. We know so little about nature, he says, that we're still discovering tiny organisms indispensable to life; and yet we're steadily, methodically, vigorously destroying nature. Wilson identifies five grave threats to biodiversity (a term he coined), and makes his TED wish: that we will work together on the Encyclopedia of Life, a web-based compendium of data from scientists and amateurs on every aspect of the biosphere. (Recorded March 2007 in Monterey, CA. Duration: 24:21)