The nation is loosing up to $40 billion in revenue per year from tax avoidance, according to a story in today's Washington Post.
The story also indicates that "...efforts to shift resources to the problem have slowed considerably, even as the extent of the problem has unfolded."
In fact, according to the story, last year the IRS commissioner admitted that "79 percent of identified taxpayers who use abusive devices such as offshore accounts are not pursued."