First Thing: Meta’s treatment of children on social media in spotlight as landmark trial set to begin

Several US states have accused Instagram and Facebook’s parent company of deliberately causing young people harm with its products. Plus: the Italian nuns fighting to keep control of their spot in the sun Good morning. More than half of the states in the US have joined together in an unprecedented lawsuit against Meta that goes to trial on Tuesday, accusing the parent company of Instagram and Facebook of deliberately designing addictive products that lured in young people and caused them…