Australia is being urged to do more to investigate allegations of genocide and war crimes, with some legal experts calling for a specialised and permanent unit to be set up. The calls follow Four Corners and Guardian Australia publishing revelations this week that Rwanda is seeking two men in Australia over allegations they participated in killings during the country's 1994 genocide against the Tutsi. One of the men has previously said he was aware of false allegations and a smear campaign against him and declined to be interviewed. The other was not able to be reached. Greens Senator David Shoebridge....