Cracking open the facts on birds and banned pesticides "A dupe of the radical Greens!" "A disingenuous corporate stooge!" What could provoke such contradictory ad hominem attacks on your humble science correspondent? My simple observation in last week's column on the 30th anniversary of the Endangered Species Act: "It is generally acknowledged that banning DDT, which thinned bird's eggshells, brought back the bald eagle, the peregrine falcon, and the brown pelican." The controversy over the pesticide DDT and bird eggshell thinning is still going strong more than 30 years after the pesticide was banned in the United States. DDT and...