(CNN) – The National September 11 Memorial Museum opens to the public this week in lower Manhattan, and some conspiracy theorists, who are apparently no strangers to Photoshop, plan on attending.

The group "Architects & Engineers for 9/11 Truth" plan on standing outside the entrance on opening day to hand out fake museum brochures, designed to look exactly like the real ones, according to The Village Voice, which first reported the story.

Inside the brochure, they claim they've compiled "a vast amount of evidence proving that all 3 World Trade Center skyscrapers were deliberately destroyed by explosives on 9/11."

They actually don't prove anything, except man's capacity for believing crazy things, and man's insensitivity to the families of the 2,753 people killed in New York, the Pentagon, and in a field in Pennsylvania, killed by Islamic terrorists with al Qaeda as every credible investigation has actually proven.

Why do so-called "truthers" have such staying power?

Slate editor and New York Times Magazine contributor Emily Bazelon weighs in.