I’m happy to bash the IRS, but I usually try to explain that our anger should be focused on the politicians who created the corrupt, 74,000-page tax code.

But sometimes the IRS deserves some negative attention. The tax collection bureaucracy has thieving employees, incompetent employees, thuggish employees, seemlingly brainless employees, and victimizing employees.

The senior folks at the IRS also deserve scorn for bone-headed decisions such as squandering millions of dollars on a P.R. campaign and a scheme to regulate and control private tax preparers.

Now it seems we have another reason to condemn the tax-collection bureaucracy. As Michael Cannon has noted, the IRS is engaging in Nixon-type political harassment.

Here’s some of what the Associated Press just reported.

The Internal Revenue Service inappropriately flagged conservative political groups for additional reviews during the 2012 election to see if they were violating their tax-exempt status, a top IRS official said Friday. Organizations were singled out because they included the words “tea party” or “patriot” in their applications for tax-exempt status, said Lois Lerner, who heads the IRS division that oversees tax-exempt groups.

Heaven forbid somebody self-identify as being patriotic. Obviously a cause for investigation by the IRS.

And it’s rather ironic that the IRS felt compelled to apologize just a few days after President Obama told us we shouldn’t listen to “voices” telling us that bad things happen in Washington.

But it’s not just that the IRS targeted groups opposing big government. The bureaucrats also violated the rules designed to protect taxpayers from IRS abuse:

[G]roups were asked for their list of donors, which violates IRS policy in most cases, she said. “That was wrong. That was absolutely incorrect, it was insensitive and it was inappropriate. That’s not how we go about selecting cases for further review,” Lerner said at a conference sponsored by the American Bar Association. “The IRS would like to apologize for that,” she added.

But you can put your mind at ease because senior IRS officials assure us that the targeting of Tea Party groups had nothing to do with political bias.

Lerner said the practice was … not motivated by political bias. …IRS Commissioner Douglas Shulman told Congress in March 2012 that the IRS was not targeting groups based on their political views. “There’s absolutely no targeting. This is the kind of back and forth that happens to people” who apply for tax-exempt status, Shulman told a House Ways and Means subcommittee.

Just like we’re supposed to believe that political bias had nothing to do with all the IRS harassment of conservative groups during the Clinton years. The message from the elites in Washington is “Nothing to see here, move along.”

But as the Wall Street Journal warned at the time, it seems there is a remarkable lack of curiosity about patterns of IRS abuse.

[O]nce we agree that a politicized IRS is a dangerous thing, it is hard to understand the see-no-evil approach taken by the Congress, the press and the judiciary about serious, current allegations of exactly this. …[O]rganizations have been using the Freedom of Information Act to find out if there is anything to the extraordinary run of audits that happened to hit a number of tax-exempt organizations that might reasonably be described as Clinton enemies. …[W]e have lots of Clinton enemies who have suffered actual audits, and very little interest in finding out whether this was simply a massive coincidence or the result of something more sinister.

Now we’re going through the same process again.

Maybe, just maybe, there’s a lesson to be learned about the dangers of giving so much power to politicians and bureaucrats.

This is yet another argument for the flat tax. If there’s no charitable deduction, there’s no opening for a politically biased IRS bureaucracy to investigate and harass nonprofit groups because of their philosophical beliefs.

P.S.: On a lighter note, here’s the IRS version of the quadratic formula, and a cartoon showing how GPS would work if operated by the IRS.