Punctuation.

The first letter is phrased oddly, yes, but the punctuation is perfect. The second letter is not punctuated at all.

Also, if you notice the Es, especially the one in ISRAEL: the bottom corner is formed by a little loop. My French teacher in high school, a French war bride from WWII, formed her Es that way. I've observed this in other Europeans. To have learned the Roman alphabet in continental Europe is a possible cause for this.

It seems as if the second letter was indeed copied from another text by someone whose English is poor, while the first was written by someone with enough confidence in ?his English to compose original text, complete with a taunt ("Are you afraid?").

If either was the work of an American, my money would be on the first letter, because the phrasing sounds so like someone impersonating a person with limited command of English. But I don't think either of them are.

I'm sure the FBI is waiting for my opinion with bated breath... ;)

Regards--
Mary Anne