What is the South African Government thinking?

Okay... Someone explain to me what the rationale behind this latest idea is?

Some parliment seat warmers have proposed to make all visitors to the country register with the government (passport in hand) before being allowed access to the Cellular networks to make calls, even if they have a roaming agreement in place with their home provider.

Where's the logic in that?
Hello, welcome to the World Cup. No you wont be able to make any phonecalls, until you (and thousands of other visitors) have popped in to register.

Next, they'll be proposing a R308 million (pronounced R411 million), to look after registrations.

Whats wrong... is passport control not enough?