Amazon stabs its own sellers in the back. Amazon Top Reviewer David Wineberg explains how.

Amazon is essential to the daily lives of untold billions across the world. However, its business policies have generated no shortage of controversy in recent years. Perhaps one of Amazon's most objectionable activities ranks among its least known -- namely how the website undermines its own merchants. David Wineberg, a top reviewer on Amazon who now eschews the platform, explains what is going on and much more on this episode of 'Cotto/Gottfried.'