The Homeland Security response is useful for areas where it is illegal to carry a weapon; schools, many shopping malls, government buildings, many workplaces, airports, etc. In general it is not legal to carry a firearm into many buildings, (even for off duty law enforcement). If you ignore the laws that "ban firearms" from the premises and get caught you will forfeit the right to legally carry a weapon in the future, lose your weapons, pay a fine, go to jail, etc., etc. These facts make these areas some of the most dangerous, and also provides this course with validity, we should be prepared for any emergency as possible. I would guess most of us would pass the test at the end without going through the course, but you will probably learn something by taking the course.