This week on Tech Weekly with Aleks Krotoski, we discuss the news that a senior UK security official has publicly said mass surveillance of social media is legal. Aleks is joined by the Guardian's legal affairs correspondent Owen Bowcott to discuss the legal implications.
Aleks is also joined by the Guardian tech team, Charles Arthur, Alex Hern and Samuel Gibbs to discuss the dawn of a new era in the World Cup tournament, with goal line technology used for the first time this week. Meanwhile, as London's Technology Week kicks off, tech grandee Ben Horowitz, one of the founders of web browser Netscape, talks about the changing nature of the technology business and where the UK is getting it right.
