As default risk is the primary driver of high-yield corporate bond prices, as opposed to interest rate direction, when the economy expands, the risk of high-yield corporate bonds defaulting is reduced and this is reflected in lower volatility.

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Depending on what the sensors detect, the car might try to mitigate the driver's risk by cutting power to the motor or automatically stabilizing the vehicle.

WSJ: Designing a Car That Takes Your Pulse, Senses If You're Ill

It attributed the increased risk to the almost five seconds it found that the driver's eyes were off the roadway while texting, said Rich Hanowski, the director of the Center for Truck and Bus Safety at the transportation institute.

CNN: Senators push nationwide ban on texting while driving

It also requires electronic verification of the license of every Mexican truck driver crossing the border who is carrying high-risk cargo.

CNN: Congress poised to put safeguards on Mexican trucks

Driver touted the safety of his trading methods, outlining risk management techniques that included the promise that trading would stop on a given day when three unprofitable trades occurred.

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And despite Google executive chairman Eric Schmidt's hope that "self-driving cars should become the predominant mode of transportation in our lifetime", it could be that even a small risk could be too much for some people to be comfortable removing the driver completely.

BBC: Will driverless cars mean computer crashes?

As part of the sanctions against Briatore, any driver who is involved with him must now sever ties with the Italian or risk losing their F1 superlicence.

BBC: F1 returns to scene of the crime

On inflation, the Fed chairman said that while high energy prices continue to be a source of risk, ongoing productivity gains in the labor market should keep wage increases--still the biggest driver of overall inflation--under control.

FORBES: Stocks Soar On Bernanke's Remarks