1.   Attacks against spray planes and escort choppers have jumped dramatically in the past year.

2.   According to Lt. Benavides, authorities hope that spray planes will be swooping over coca fields in Putumayo within the year.

3.   Enter the narco-guerrilla, who shoots at the US spray planes that carry out the crop fumigation strategy.

4.   The Federal Aviation Administration grounded spray planes nationwide Saturday, fearing terrorists might be planning to use them to spread chemical or biological weapons or poison water supplies.

5.   Their role is to protect spray planes and destroy coca-processing laboratories in the jungle.

6.   Yet police spray planes, some flown by civilian U.S. pilots contracted by the State Department, continue to fumigate drug crops across much of the country.

7.   Also in the works is a shipment of five additional spray planes for police use.

8.   Beers said this has not affected operations and spray planes are still using Cosmo Flux.

9.   Nonetheless, skeptics expect most of the poor coca growers to simply continue their cat-and-mouse game with the spray planes.

10.   Under Plan Colombia, U.S.-trained troops and U.S. spray planes are wiping out drug crops.