I never said it was a good ETL system. Heck, I don't even know if the specs for it even specifies what to do with a bad record - there are at least 300 pages de

I never said it was a good ETL system. Heck, I don't even know if the specs for it even specifies what to do with a bad record - there are at least 300 pages detailing the system. Looking around at other stories, I see repeated mentions of how the circumstances leading to this failure are supposedly extremely rare, "one in 15 million" according to one official[1]. But at 100,000 flights/day (estimated), this kind situation would occur, statistically, twice a year. 1 https://news.sky.com/story/major-flights-disruption-caused-by-extremely-rare-set-of-circumstances-air-traffic-control-chiefs-say-12955708 https://news.sky.com/story/major-flights-disruption-caused-b...