Something tells me leniency is not what this guy needs.
Note: the ages of the girls involved; the fact this guy owns child porn, and some of his other questionable coincidences... Oh, yeah, and he's foreign service - way to go US Gov workers!
The cultural argument is complete BS - I don't care if she's from the US, Brazil, Chad, the Phillipines - or what "cultural" challenges she's faced in her life - sleeping someone who is 14 should be considered rape even if she did "consent" (especially when you are 40!) plus international law states that someone under the age of 18 can't consent to be sexual abused.
So not right on any level, anywhere...