Quoted: On the surface, April 1 came and went without a peep from the dreaded Conficker megaworm. But security experts see a frightening reality, one where Conficker is now more powerful and more dangerous than ever.

Quoted: Remember in October when 14 sparrows started leaving droppings on the floor of the arrivals hall at Seat-Tac International Airport and staff consulted with a resident biologists to figure out how to get them out -- gently?

Quoted: One of al-Qaeda's founding leaders, Dr Fadl, has begun an ideological revolt against Osama bin Laden, blaming him for "every drop" of blood spilt in Afghanistan and Iraq.

Quoted: Even if carbon dioxide emissions were halted today, global warming and the environmental disruption that comes with it would continue for 1,000 years, says a sobering study. Scientists are urging politicians to proceed with caution as they set new target levels for emissions.

Quoted: AKUMAL, MEXICO -- Jumping off a 15-foot cliff into a water-filled cave aptly named ''the Pit,'' I felt like I was the star of my own Indiana Jones movie. Except my wardrobe was all wrong -- no jaunty bush hat for me. David Diaz and I were about to dive 140 feet deep underwater, and for that we wore wet suit, hood, mask, fins and scuba tanks and carried some really bright lights.