Michael Osinski, a former Wall Street computer programmer whose fancy software helped bring the banks to near collapse, says he is dismayed at the financial whirlwind.

迈克尔·奥辛斯基曾经是华尔街的一名计算机工程师，他设计的软件曾让多家银行濒临倒闭。如今，他已经对金融界的风风雨雨感到厌倦。

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Only about 35% of Americans know how to swim, and only 2% to 7% swim well, Osinski says.

CNN: Water safety expert: 'Drowning doesn't just happen'

In this case, the swimmer would go through the stages of what lifeguards call an "active drowning, " Osinski says.

CNN: Water safety expert: 'Drowning doesn't just happen'

"You can't tell when they go unconscious, until it's too late, " Osinski says.

CNN: Water safety expert: 'Drowning doesn't just happen'