For a brief time, Fetzer's book was available for sale on Amazon.com until the online merchant decided to pull the item from their virtual shelves. Predictably, this too has become part of the conspiracy. Fetzer calls the removal "a political move because this book is simply 'too good', 'too hot' and 'too threatening' to the Holder/Obama administration."
Without official comment from Amazon, it's hard to say why they decided against carrying it, though it's likely they're simply enforcing their policy about removing offensive content, such as they have done before with those trying to profit off mass murder.
Of course that won't stop Fetzer from disseminating his material. I, for one, would not argue against his right to peddle his book as he pleases, so long as he understands that there are those who will equally exercise their right to not buy a word of it. Count me among them.