"Scientific American", "Popular Mechanics", and "The Skeptic's Dictionary" have published articles that rebut various 9/11 conspiracy theories. "Popular Mechanics" has published a book entitled "Debunking 9/11 Myths" that expands upon the research first presented in the article. In the foreword for the book Senator John McCain wrote that blaming the U.S. government for the events "mars the memories of all those lost on that day" and "exploits the public's anger and sadness. It shakes Americans' faith in their government at a time when that faith is already near an all-time low. It trafficks in ugly, unfounded accusations of extraordinary evil against fellow Americans." "Der Spiegel" dismissed 9/11 conspiracy theories as a "panoply of the absurd", stating "as diverse as these theories and their adherents may be, they share a basic thought pattern: great tragedies must have great reasons."