Latest from Tanzania

<EM>Greg Ansley:</EM> Medal tally highlights wealth gap

Extinction looms for the 'king of beasts'

Diplomats freewheeling around London

UK family visit part of PM's holiday trip

'We must do far, far more' against AIDS, says Annan

The savage business of witchcraft hunts

Zanzibar leader re-elected

Africa more vulnerable to flu than Europe

Kiwi traces the source of Nile

A New Zealander leading a team of Britons through Africa says they want to make the first complete ascent of the Nile River.