israel's iron dome defence system in action against those strikes. meanwhile, video from iranian sources said to show missiles launching on saturday originated variously from the war in gaza in 2021, turkish rockets fired in syria in 2020, ukrainian missiles targeting russian ships last month, and an old farm fire in chile. more footage claiming to be of israelis panicking at the drone attacks actually showed fans of the pop star louis tomlinson in argentina last week. well, those videos with their sometimes wild claims are amongst the footage that's been examined over the past week by journalists at bbc verify. one of those journalists is shayan sardarizadeh and hejoins me now. thank you so much for taking the time to come on newswatch. can we talk about the footage of pop fans in buenos aires that we just showed a bit of ther? how fast did that get exposed, and what was the process?