The confusion and terror following the Sept. 11 attacks on the World Trade Center left many searching for answers. Some conspiracy theorists point to conflicting reports and murky political agendas in their alternative versions of the event.
The events of Sept. 11, 2001, left America and much of the world wondering who could have been responsible for the devastating attacks. Who exactly hijacked and flew the planes, and how did they get involved with the plot?
Police sketches may be a routine part of law enforcement investigations, but they've been key to solving some extraordinary cases. How do forensic artists create these renderings, and how reliable are they, really? Find out in How Police Sketches Work.
In murder-mystery TV shows, detectives look for clues to find the killer. Part of that involves getting into the murderer's mind-set. What factors make it easier for one person to take the life of another?
Terrorists work very hard to remain undetected. After all, if we knew where they were, we could stop them from attacking. But they usually work in small groups, or even alone. How do law enforcement officials track them down?
When an anthrax attack just after Sept. 11 killed five people and infected 18 more, U.S. residents were sent into a bioterrorism panic. Bioterrorism has actually been around for many centuries, but we keep finding new ways to combat it.