That would be scary.
When my dad was in Korea CBS mis-reported that his company had been annihilated. It was 2 weeks before my Mom got a postcard from him that post-dated the alleged annihilation. She said it was the longest 2 weeks of her life.
When I told Dad how thankful I was that Mom got that good news, he said the families of the company that really did get annihilated - one that was connected to the Turkish allies who were so hated by the communists - didn’t have that wonderful surprise.
I hope it was not a long wait for your Dad and Grandma to get the explanation that put their fears to rest.
thanks...not long... not as long as your Mom... that had to be a crazy time. From the time i left VN to home ? 5 days.