zimcricketnews.com

The Australian government has ordered Cricket Australia to cancel their tour of Zimbabwe, scheduled for later this year, pointing out that they have the power to prevent members of the Australian team from travelling should CA have decided to go ahead. As the cancellation is the result of government action, CA will not face an ICC fine. Announcing the decision, Australian PM John Howard said:

"The government through the foreign minister has written to Cricket Australia instructing that the tour not go ahead. We don't do this lightly. Whilst it pains me both as a cricket lover and as somebody who genuinely believes these things should be left to sporting organisations... it leaves me with no alternative."

Have to disagree with you there, John - it's not the job of sporting organisations to implement your political decisions for you. CA, to their credit, are looking at ways to allow the matches to take place outside Zimbabwe, according to CA chief James Sutherland:

"We are obliged to do what we can to help Zimbabwe cricketers and we could help them by playing somewhere else. We are discussing with the government where we could play Zimbabwe at a neutral venue."

That neutral venue would most likely be South Africa, ahead of the Twenty20 World Championships.
BBC Sport - Aussies pull out of Zimbabwe tour

UPDATE: ZC have ruled out playing the series at a neutral venue - their stance is either that it should be played in Zimbabwe, or not at all. Given the Australian government's stance on the matter, no prizes for guessing what that means...
CricInfo - Zimbabwe rule out neutral venue