A: Hey there! Anything interesting happen over the weekend?
B: Not much, just the usual stuff. Why do you ask?
A: Oh, there was a train accident on Sunday near Tokyo. Turns out it might have been caused by a software glitch in the safety system.
B: Really? That sounds serious! What happened exactly?
A: Well, a train bound for Shibuya hit an out-of-service train at Kajigaya Station. The accident caused some derailment and affected about 650,000 passengers.
B: Wow, that's a lot of people! So, the software error didn't show a red light to the driver and didn't stop the running train even when another one was stopped ahead?
A: Exactly! The operator, Tokyu Railways, is doing emergency inspections on all lines now. They believe the error happened ten years ago when the program was modified.
B: I see. And what did their president say about it?
A: He apologized for causing inconvenience and concern to so many customers, said he'll thoroughly investigate, and take measures to prevent similar accidents in the future.