It turns out that millions of illegal aliens across America are fraudulently taking advantage of a tax loophole to siphon $4 billion from the Internal Revenue Service. The scheme was uncovered by a longtime tax consultant in Indiana, who spilled the beans to NBC Eyewitness News-Indiana investigative reporter Bob Segall.

The whistleblower says the device being used is the Additional Child Tax Credit, whereby illegals filing tax returns are receiving money for children living in Mexico. Segall reports that the IRS knows of the scheme and has done nothing to remedy it. Check out the results of Segall’s three-month investigation. More from WTHR-TV, Channel 13.

(EDITOR’S NOTE: Part One of the series has disappeared off YouTube. In its absence, here’s a summary of the research Segall performed that earned him a Peabody Award.)