1931
Following a long trial, Al Capone was found guilty on tax evasion charges. Even though he owned many illegal speakeasies and breweries, the only way the government could stop him was through the IRS. The judge gave him an eleven-year sentence along with heavy fines, and liens were filed against his various properties.
2010
Congress passed the bill, HR3590: Patient Protection and Affordable Care Act.
The nineteen tax increases in the bill, and the $497 billion in new tax revenue generated over the next ten years is going to require a lot more manpower.
Included in the bill is an additional $10,000,000,000 for the IRS's administration of the IMT, or Individual Mandate Tax. Using all past IRS budget data, concerning total cost including overhead per IRS employee, this means the IRS can hire 11,800 new agents, auditors, and examiners. Some estimates, including a new analysis by the Joint Economic Committee of Congress, push the number of new IRS personnel to 16,500.
Included also in the IRS budget are new assault police style shotguns and combat training for its field agents. These will be needed when they are putting locks on doors and confiscating property. According to the study conducted by the Congressional Budget Office, 46% of the nearly five billion in new taxes will be owed by families making less than 300% of the Federal Poverty Line, or about $66,000 for a family of four.
A much more complicated tax return, including not only your proof of insurance information, but also over a dozen new excise taxes will require more personnel, that's a given. The prosecution of those not willing to pay the new taxes will be labor intensive, also. While the bill specifically states that there are no criminal penalties set forth in the new bill, it prefaces those statements with the the phrase "Not withstanding any other provision of law".
So it looks like the unemployment numbers just got a big boost, and if you are one of the currently unemployed, you might look into the IRS.