We make it too easy for outsiders to con their way into our company plants and offices. Even with guards at entrances and sign-in procedures for anyone who isn't an employee, any one of several variations on the ruse used in this story will allow an intruder to obtain a visitor's badge and walk right in. And if your company requires that visitors be escorted? That's a good rule, but it's only effective if your employees are truly conscientious about stopping anyone with or without a visitor's badge who is on his own, and questioning him. And then, if the answers aren't satisfactory, your employees have to be willing to contact security.