American endurance swimmer Diana Nyad , 61, swims in Cuban waters, offshore Havana, Cuba, Sunday, Aug. 7, 2011. Nyad jumped into Cuban waters Sunday evening and set off in a bid to become the first person to swim across the Florida Straits without the aid of a shark cage. (AP Photo/Franklin Reyes)
August 9, 2011 1:31:22 PM PDT
By JENNIFER KAY Associated Press
KEY WEST, Fla. (AP) - August 9, 2011 --
The currents in the Florida Straits finally proved stronger than the determination that had pushed Diana Nyad across vast stretches of open water before.