Chinese dissident artist Ai Weiwei protests possible extradition of Julian Assange in LondonAi Weiwei mourns Hong Kong freedoms but is 'proud' of Tiananmen middleMysterious 'Big Ring' found in space 'must surely be telling us something'Better funding could prevent more drowningsCrusaders rediscover winning form with 11Colonial statues vandalised ahead of contentious Australia Day holidayGovernment to spend more money on silt cleanGisborne deaths came after two crashed birthday partyEaster weather: Chilly Good Friday forecast as southerly winds sweep New ZealandOne in critical condition after e