ABC's Four Corners program just released a new app called "Four Corners 50 Years" for the iPad. It has a huge collection of stories (over 70) and videos which have featured from the program in the past, categorised by the decades.
It includes everything from cricket match fixing, to the code of silence by footballers, to the Nazi party in Australia. Definitely worth downloading and checking out, even if you don't use it in class! Download here.