More Problems with Brady Background checks

Previously I wrote about how virtually all those stopped by background checks were false positives. Now we find that they are letting criminals buy guns who shouldn't have been allowed to. From Fox News:

In the latest chapter of the gunrunning scandal known as Operation Fast and Furious, federal officials won't say how two suspects obtained more than 360 weapons despite criminal records that should have prevented them from buying even one gun.
Under current federal law, people with felony convictions are not permitted to buy weapons, and those with felony arrests are typically flagged while the FBI conducts a thorough background check.
However, according to court records reviewed by Fox News, two of the 20 defendants indicted in the Fast and Furious investigation have felony convictions and criminal backgrounds that experts say, at the very least, should have delayed them buying a single firearm. Instead, the duo bought dozens of guns on multiple occasions while federal officials watched on closed-circuit cameras.
Congressional and law-enforcement sources say the situation suggests the FBI, which operates the National Instant Criminal Background Check System, knowingly allowed the purchases to go forward after consulting with the Bureau of Alcohol, Tobacco, Firearms and Explosives, which initiated Operation Fast and Furious. . . .