US Secretary of State John Kerry says the alternative to a nuclear deal between Iran and six world powers is war. But Israel’s Prime Minister Benjamin Netanyahu calls it ‘a stunning historic mistake’. Who’s right? And what does all this mean for US President Barack Obama’s legacy? Also in this edition of Between the Lines, weekend rallies by the right-wing nationalist group Reclaim Australia have prompted a warning that racial cohesion in Australia is facing its greatest threat in 30 years.  The president of the Anti-Discrimination Board of New South Wales, Stepan Kerkyasharian, says racially charged anti-Islamist rallies and counter anti-racism rallies could even escalate into a situation similar to the Cronulla riots a decade ago.