graeme_p - 12:58 pm on Aug 4, 2012 (gmt 0)
In principle the case for it is that no one country should run a global network. ICANN has also not done a uniformly wonderful job either - although things have worked reasonably well on the whole until recently.
The coordination required at that level is not all that different from what the ITU does.
My main concern is that the move to the ITU could be made an excuse to impose censorship, abolish anonymity etc.
However, the US govt and ICANN not seem to be moving in a wonderful direction either with domain name seizures, claims of wide jurisdiction, and proposed strict (and expensive) verification of domain owners names.