I think I've posted about it before, but we lived about 2 hours north when it happened, so my family and I got together a bunch of supplies (food, water, toiletries, clothes, socks, underwear, first aid supplies, etc), loaded up our SUV, and drove down there the next morning. it was understandably pretty chaotic, but at the handful of checkpoints we just explained what we were doing & showed ID and they waved us through (I didn't have legit state ID bc I was too young but I had my Sea Cadet ID card and my parents had me wear my uniform lol). I think my dad also showed his driver's licence and some old military ID he had to identify himself as a veteran.
we didn't *technically* reach Ground Zero™ itself, but we got as far as a gathering point of first responders about a block away, and when we got out of the car we were still ankle deep in dust and debris. we handed out supplies, & I used some of the water bottles with nozzles to flush some people's eyes because it was so super dusty even that far back, like there was plenty of dust on the ground, but a lot of it was fine particulates that were still hanging out in the air and most people did not have goggles. someone eventually gave me an N95, but it was too big for me so it wasn't any more effective than a cloth mask would have been (
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