Priming us for his trip to a town in the grips of Crystal Meth addiction (due to be shown on BBC2 this coming Sunday), RTE2 are showing the journalist's travels to South Africa's largest city, where some residents have lost faith that the police will protect them. He meets the co-ordinator of an increasingly popular private security firm to learn about the brutal methods used by the company to punish criminals who are caught. He's then escorted into a tower block that has been taken over by a lawless gang to meet their boss. Flick yourself over to Channel 4 at 10.00pm for a spot of light relief afterwards in the form of You Have Been Watching. Mr. Brooker is tonight joined by comedian Reginald D Hunter, actor Martin Freeman, and Liza Tarbuck.