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Fertilizer and pesticide runoff from farmlands contribute to destructive algal blooms and the 7,000 - square-mile dead zone that appears every summer in the Gulf of Mexico off the coasts of Louisiana and Texas . This is one of the arguments made by U.S. Education Secretary Richard Riley and such voucher opponents as the National PTA and People for the American Way . Although the surroundings are certainly fancy enough for an evening dinner , the weekday lunch specials and Sunday buffet are what draw the crowds . Under the Pennsylvania system , a business can contribute $ 133,333 to either a scholarship organization or an educational improvement organization to receive the $ 100,000 maximum tax credit . The spinach dip is nice and cheesy , and it 's served with salty palm-sized tortilla chips that were just right for scooping the dip .