one might think the eastern most point is Florida.
I think you are onto something Maine, red flag being Fla did go Red and don't forget Fla was central in many aspects to the 911 attackers, what several were even registered to vote in Fla
Traditionally, the "red flag" in battle is the symbol of no quarter. Meaning kill everyone, take no prisoners.
We certainly don't have any high rises or anything else of interest in the tip of Maine - except maybe as an entry point?(Lot's of wide open sea, islands and coves, sparse population...easy entry?
Mohammad Attar was caught on tape leaving the Portland Airport - on his way to his infamous deed on 9-11...but where did he enter Maine?
further - I don't believe it was ever in print, but just before he and his companion left Portland, they had been further north in Maine - in Brunswick, where they had dinner in a local restaurant (and had beer, so against their belief - but part of their "fit in" training) and Brunswick is the home of BNAB (Naval Air Base)...very easy to case - and take photos just by standing on the highway. (Done it myself as son-in-law is P3 pilot)
So, I wonder if Maine isn't used primarily as an entry point - then they filter on down?