What next for big tech?

Prompted by Jeff Bezos' announcement of his plans to step down as CEO of Amazon and the continued strong performance of Alphabet, Dominic O'Connell of the BBC's Today programme, interviewed John Fingleton this morning for his views on big tech. The BBC's business correspondent asked if the silicon tech giants are becoming too powerful? Could the new US president Joe Biden step in, perhaps by breaking them up? And why have the US authorities not taken on Silicon Valley yet? John Fingleton shares his views on the difference between the UK and US competition environments here at 6.16