This stockpile of cash wants to seek higher returns in the stock market but is waiting for a sign that the water is safe.

FORBES: Buy the Numbers

By contrast, the White House would portray a collapse of tax talks as a sign the GOP is playing games with the economy to seek political advantage.

WSJ: Talks on Tax Cuts Set Stage for 2012 Campaign

If the person later felt any chest pain, they could do a further test, and the machine would tell them if there was any sign of a heart attack or angina and direct them to seek medical attention.

BBC: Hand-held heart test devised