" The wealthy have also fought to underfund and defang the Internal Revenue Service, so it doesn’t have the resources to audit or fight dubious deductions. Only about 6 percent of tax returns of those with income of more than $1 million are audited, along with 0.7 percent of business tax returns. Meanwhile, there is one group that the IRS scrutinizes rigorously: the working poor with incomes below $20,000 a year who receive the Earned Income Tax Credit. More than one-third of all tax audits are focused on that group struggling to make ends meet, even as the agency cuts back on audits of the wealthy—while the top 5 percent of taxpayers account for more than half of all underreported income. "
― Nicholas D. Kristof , Tightrope: Americans Reaching for Hope