1.   At least one company, Monsanto, is investigating the possibility of genetically engineering crops that use less fertilizer.

2.   Oliver and his colleagues hope to soon engineer common crops with these genes so that they will be able to withstand weeks to months without rain.

3.   Scientists have already engineered crops with mega-vitamin supplements.

4.   Crops have been engineered to stay fresher longer or else to resist pests and herbicides.

5.   The crops are engineered to produce their own pesticide or to make them resistant to a weedkiller.

6.   The crops are engineered to be toxic to insect pests or to be resistant to a popular weed killer.