Maybe this is where IRS officials learned to dance around questions about the extra scrutiny they gave to conservative groups.

An internal report says the Internal Revenue Service spent $1,600 producing a video showing a dozen or so IRS employees learning how to line dance the “Cupid shuffle.”

The video, made for a 2010 training and leadership conference, comes on top of revelations IRS workers made other videos parodying the “Star Trek” and “Gilligan’s Island” TV shows. It is one small piece of a larger picture of poor judgment in spending tax dollars.

A Treasury Department inspector general released a report this week entitled, “Collected and Wasted.” ...

The disclosures bring to mind last year’s fiasco involving the General Services Administration, which spent $823,000 on a Las Vegas conference for employees that featured a mind reader, a clown and staff videos mocking the agency’s spending of tax money. Two top GSA officials were forced out over that, but it later was disclosed that several conference organizers received $500 to $1,500 bonuses for their work in planning the extravaganza.

The three-year period covered in the upcoming IRS report on waste came before the across-the-board sequestration spending cuts hit all federal agencies. But the nation’s economy was reeling during those years, the federal budget deficit was ballooning and millions of taxpayers were struggling.

The acting IRS commissioner, Daniel Werfel, acknowledges that the expenses should not have occurred. ...

Testifying to Congress, Werfel said American taxpayers no longer trust the IRS — but that he is “committed to restoring that trust.” Werfel said new leadership has been installed, and he is conducting a review of what went wrong and ways to correct it.

He could start by insisting that everyone in his agency be a good steward of every dollar they collect from taxpayers. Trust means that taxpayers must know the tax collector is fair, impartial and prudent with their money.