CITIZEN ANGER AT Tucson town hall over Fast and Furious gun-smuggling scandal.

Related: Obama evades ‘Fast and Furious’ questions from Latino media.

Plus: More “Fast & Furious” Revelations:

This just might be the smoking gun we’ve been waiting for to break the festering “Fast and Furious” gun-running scandal wide open: the Department of Alcohol, Tobacco, Firearms and Explosives apparently ordered one of its own agents to purchase firearms with taxpayer money, and sell them directly to a Mexican drug cartel.

Let that sink in: After months of pretending that “Fast and Furious” was a botched surveillance operation of illegal gun-running spearheaded by the ATF and the US attorney’s office in Phoenix, it turns out that the government itself was selling guns to the bad guys. . . .

There are two possible explanations. The first is that the anti-gun Obama administration deliberately wanted American guns planted in Mexico in order to demonize American firearms dealers and gun owners. The operation was manufacturing “evidence” for the president’s false claim that we’re to blame for the appalling levels of Mexican drug-war violence.

If this is true, then Holder & Co. have got to go — and the trail needs to be followed no matter where it leads. For the federal government to seek to frame its own citizens is unconscionable.

A second notion is that the CIA was behind the whole thing, which accounts for all the desperate wagon-circling. Under this theory, the Agency feared the los Zetas drug cartel was becoming too powerful and might even mount a coup against the Mexican government. So some 2,000 weapons costing more than $1.25 million were deliberately channeled to the rival Sinaloa cartel, which operates along the American border, to keep the Zetas in check.

Of course, there’s a third explanation — that both scenarios are true, and that those in charge of Fast and Furious saw an opportunity to shoot two birds with one Romanian-made AK Draco pistol.

Time for a special prosecutor, who’s both fast and furious.

Yes, a special prosecutor is clearly warranted here.