On 7/24/24, 09:35, "Toerless Eckert" <tte@xxxxxxxxx <mailto:tte@xxxxxxxxx>> wrote: > 1. Question: How many people did register for IETF120 and requested an invitation letter, but did not check-in onsite. The final count of course would be on friday if someone actualy only wanted to go to IETF for one day, but the data for today would likely be a good indicator. [JL] I suspect the Crowdstrike incident that caused massive flight disruptions will also be a significant cause. It seems especially bad for anyone that had planned to fly on Delta (https://www.nbcnews.com/business/travel/delta-air-lines-cancels-hundreds-flights-dot-opens-probe-rcna163175).