Skylar Murphy, 18, happened to show up at Alberta's Edmonton International Airport in September 2013 with a black-powder-loaded pipe bomb in his carry-on, ready to board an international flight. Agents confiscated the bomb but allowed Murphy to continue his trip; in fact, police weren't notified, nor were possible "terrorism" ties examined, until four days later. Canada's version of the Transportation Security Administration isn't allowed to apprehend or detain passengers. In December, the harsh hammer of justice finally banged down on Murphy. He was fined $100 and sentenced to a year of probation.