All the cunning of human nature at finding holes in the tax code was on display at a Senate hearing last week in the form of the mounted head of an African springbok - a bounding creature so delicate in life, so valuable in death as a charity write-off. The animal was a compelling Exhibit A as officials described how sportsmen and their accountants chisel the tax code with high-powered rifles. Hunters underwrite exotic vacations by claiming deductions for trophy game, over-generously appraised as charity donations for questionable "museums." "Hunt for Free," advertises one purveyor of this growing abuse. "We'll...