Segmented pricing is common. Most people understand and accept situations where children or seniors get a break on meal prices or tickets to the movies. But what do you say to an entire country that wants better prices on prescription drugs? The following excerpt from a CBS Evening News story captures the essence of the debate. "It may come as no surprise that the pharmaceutical industry is the most profitable business in the country. Americans pay far more for their prescription drugs than citizens of any place on Earth. It will also come as no surprise that as a political issue, the high price of drugs has united both Republicans and Democrats. More than a million Americans now buy their medications for much lower prices in Canada. And it's no longer just older people taking buses across the border. Mayors and governors from Minnesota to Alabama are helping Americans get Canadian drugs by mail. According to the FDA such purchases are technically illegal. So far, the government has declined to prosecute individual customers or the cities and states involved.