Top Stories for Wednesday 26 June 2013

Opposition Parties say Dunne should pay back money; GCSB bill looks to hinge on concession from Key to Peters; Julia Gillard braced for Kevin Rudd leadership challenge; Edward Snowden has not yet left Moscow airport; Doubts cast over Hone Heke's bones; Obama calls for carbon regulations at power plants; Meridian float questioned after slide in Mighty River shares.