Australian ISIS brides and their children are expected to return to Australia within hours or days, sparking political debate over border entry. Opposition leader Angus Taylor is calling on Prime Minister Anthony Albanese to block their return, while Home Affairs Minister Tony Burke examines whether temporary exclusion orders can be legally applied. International law expert Professor Donald Rothwell explains that Australian citizens with valid passports have a legal right to enter the country, though temporary exclusion orders remain a possible but exceptional mechanism requiring high thresholds of proof to prevent terrorist attacks.