Today in Focus

Anonymous activist Martha Root on how she hacked into, and took down, a dating site for white supremacists. With reporting from investigative journalist Eva Hoffman. Help support our independent journalism at theguardian.com/infocus

Donald Trump has said he is considering pulling the US out of Nato, likening the alliance to a ‘paper tiger’. It comes after weeks of denouncements from the US president against allies for not helping to reopen the strait of Hormuz. When asked about Trump’s comments, Keir Starmer said: ‘Nato is the single most effective military alliance the world has ever seen’ and ‘whatever the noise, I’m going to act in the British national interest in all the decisions that I make’. Lucy Hough speaks to the Guardian’s Europe correspondent, Jon Henley – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Why has the UK introduced a ban on student visas for four countries? Today in Focus talks to affected students in Sudan and Afghanistan, as well as our home affairs editor, Rajeev Syal. Help support our independent journalism at theguardian.com/infocus

Israel’s parliament has passed a law imposing the death penalty on Palestinians convicted of fatal attacks - a measure sharply criticised as discriminatory by European countries and human rights groups. After the law passed, the Knesset erupted into cheers and the national security minister, Itamar Ben-Gvir, brandished a bottle of champagne in celebration. The law has been decried as ‘an act of institutionalised discrimination and racist violence against Palestinians’ by Israel’s leading rights group. Lucy Hough speaks to the Guardian’s deputy head of international news, Devika Bhat – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Astronaut Tim Peake and Guardian journalist Richard Luscombe talk through Artemis II, the first manned mission to the moon for 50 years. Help support our independent journalism at theguardian.com/infocus