Today in Focus

Mojtaba Khamenei has been chosen to replace his father Ayatollah Ali Khamenei as Iran’s supreme leader, while the country continues to be heavily bombarded by US and Israeli forces. There are concerns the move could lead to a further escalation of war in the Middle East, after Donald Trump warned that Khamenei was an ‘unacceptable’ choice. But as oil prices soar, could the US president be looking for a way out of this war? Lucy Hough speaks to diplomatic editor Patrick Wintour– watch on YouTube. Help support our independent journalism at theguardian.com/infocus

The photo of a Vietnamese girl running away from a napalm strike is one of the most famous in history. But who actually took it? With conflict photographers Gary Knight and David Burnett, and film-maker Bao Nguyen. Help support our independent journalism at theguardian.com/infocus

Donald Trump has fired his controversial US homeland security secretary, Kristi Noem, after weeks of bipartisan complaints about her leadership. As the public face of an aggressive immigration crackdown that prompted lawsuits and nationwide anti-ICE protests, Noem’s year-long tenure was plagued by multiple controversies, including accusing two US citizens killed by immigration agents of ‘domestic terrorism’. What exactly led to Noem’s firing and what do we know about her replacement? Nosheen Iqbal speaks to the Guardian US live news editor Chris Michael – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

As Chicago prepares to bid farewell to Jackson, Today in Focus hears about the groundbreaking civil rights activist from those who knew him. Help support our independent journalism at theguardian.com/infocus

Intense waves of airstrikes have hit dozens of military positions, frontier posts and police stations along northern parts of Iran’s border with Iraq in what appears to be preparation by the US and Israel for a new front in their war. Iran has warned ‘separatist groups’ in this region against joining the widening conflict and launched strikes against Iraq-based Kurdish groups it described as ‘opposed to the revolution’. Could the involvement of these militant groups increase the risk of a civil war in Iran if the regime collapses? Nosheen Iqbal speaks to deputy head of international news Devika Bhat – watch on YouTube. Help support our independent journalism at theguardian.com/infocus