(Reuters) - "No Easy Day," the controversial book by a former U.S. Navy SEAL about the commando raid that killed Osama bin Laden, has stormed to the top of U.S. book sales on online retailer Amazon.com.
"No Easy Day: The Firsthand Account of the Mission That Killed Osama Bin Laden," is written by a Navy SEAL operative under the pseudonym Mark Owen. It's co-written by StarNews Editor Kevin Maurer.
The unauthorized book, which has caused the U.S. Government to threaten legal action on the grounds of non-disclosure of government secrets, is already out-selling the hugely popular Fifty Shades erotica book series.
The hardcover edition of "No Easy Day" officially becomes available in the United States on Tuesday, September 4. Amazon.com's best-seller list includes pre-orders.