An airport detector dog sniffs out cocaine on a man coming in from Africa. Two Los Angeles tourists also get a positive reading from another detector dog. Viewers get a look at the training of these highly skilled Labs. Prohibited plant products being shipped into Australia are carrying invasive mosquitos.

An airport detector dog sniffs out cocaine on a man coming in from Africa. Two Los Angeles tourists also get a positive reading from another detector dog. Viewers get a look at the training of these highly skilled Labs. Prohibited plant products being shipped into Australia are carrying invasive mosquitos.