Latest on Iran war with Middle East correspondent Lou Browne

Iran says it's "waiting" for a potential US ground attack and has threatened to "rain fire" on American soldiers if they lay boots on their land. It comes after the arrival of 3500 more troops in the Middle East and reports that the Pentagon is getting ready for weeks-long ground operations in Iran. Meanwhile, Pakistan says it's preparing to host talks between the US and Iran to try and negotiate an end to the war as it stretches into its second month. Middle East correspondent Lou Browne spoke to Lisa Owen.