Ending last year with a crisis and facing a new financial reckoning after a mid-air fuselage blowout in January, Boeing has acknowledged it needs to improve its work and win back its reputation.

But the company has had to delay more 737 Max deliveries after incorrectly drilled holes were found in them. The boss of Emirates airline Sir Tim Clark warned that Boeing is in the "last chance saloon", saying he had seen a "progressive decline" in its performance.

Also in the programme, we find out who the real creator of Bitcoin is, and will Taylor Swift's recent Grammy change the male-dominated music industry.