All of those thousands of new hires are to take place over a 5 year period in anticipation of thousands leaving and retiring. Not all are going to be agents as they need clerks and lots of support staff. Besides, their main objective is to go after those millionaire and billionaire tax cheats and not the ordinary worker and they are not sending armed agents out there to harass them. People have to stop with the uniformed whining.
This reminds me of the same old commercials that come out this time of year of poor people getting "heart stopping notices" and "grand seizures of property" in order to get people fleeced by the companies who put out that nonsense.
All the best,
Nonoise