Prosecutors say it would be next to impossible to get one teen to testify in court that another had slipped him or her a copied disc at lunchtime. And besides, isn't sharing music a time-honored part of teen friendship?

Stock exchanges say that more than half of all trades are now executed by just a handful of high-frequency traders, who use rapid-fire computers to essentially force slower investors to give up profits, then disappear before anyone knows what happened.

When people have a willpower failure, it's because they haven't anticipated a situation that's going to come along.

Drinking water that does not meet a federal health guideline will not necessarily make someone ill. Many contaminants are hazardous only if consumed for years. And some researchers argue that even toxic chemicals, when consumed at extremely low doses over long periods, pose few risks.

Some officials overseeing local water systems have tried to go above and beyond what is legally required. But they have encountered resistance, sometimes from the very residents they are trying to protect, who say that if their water is legal, it must be safe.

A huge amount of success in life comes from learning as a child how to make good habits. It's good to help kids understand that when they do certain things habitually, they're reinforcing patterns.

Fraudulent and improper payments have long bedeviled Medicare, a $466 billion program. In particular, payments for durable medical equipment, like power wheelchairs and diabetic test kits, are ripe for fraud.

Many cows are fed a high-protein diet, which creates a more liquid manure that is easier to spray on fields.

Many environmental advocates argue that agricultural pollution will be reduced only through stronger federal laws.

Since cowardice must occur at a time and place where an enemy either has already appeared or may yet turn up, servicemen in peacetime - and ordinary civilians - can breathe a sigh of relief. If you are yellow-bellied back home, you're not technically a coward.