Translation of letal

for a minute I blamed the burger that I had eaten at the duty free back in Cancun, but thinking a little further I recalled eating street food the night earlier, as it was Mexican independence day.
I do not mean to claim that they ought forget their own history, but I assert that they should forgive, not to the culprits who made the rage (that would not be possible), but the next innocent generation.
On the way we met a nice village girl which tried to sell us some souvenirs. We told her that we would not buy from her. Her English was excellent, and we did not believe that she was twelve years old.