Birth Tourism

Is it ok for a pregnant woman to come here for a couple of months in order for her baby to get U.S. citizenship, then go back to their home country, and later send the child here to college as a U.S. citizen, w/o having lived here and paid taxes?

http://abcnews.go.com/Politics/birth-tourism-industry-markets-us-citizenship-abroad/story?id=10359956#.UOov-qyz6Ms

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Among the foreigners who have given birth here, including international travelers passing through and foreign students studying at U.S. universities, are "birth tourists, women who travel to the United States with the explicit purpose of obtaining citizenship for their child

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In recent years, many women have come from Mexico, South Korea, China and Taiwan, but the trend now extends to countries in Eastern Europe, such as Turkey, where as many as 12,000 children were born in the United States to Turkish parents since 2003 by one estimate
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The United States is one of the few remaining countries to grant citizenship to all children born on its soil. The United Kingdom, Ireland, India and Australia, among others, have since revised their birthright laws, no longer allowing every child born on their soil to get citizenship.