From her second-floor offices bordering the sparkling Caribbean at Charlotte Amalie, the capital of the U.S. Virgin Islands, Catherine Sittig presides over one of the corporate-welfare system's most enduring success stories.
Sittig's company represents hundreds of U.S. corporations--she won't say exactly how many--that have offshore affiliates in the islands. This isn't as demanding as it might sound. It's largely a matter of filing papers and mailing out invoices. After all, the companies she represents are just paper entities. But they have come to represent a drain, created by Congress and perfectly legal, of $1.7 billion annually on the U.S. Treasury.
It...