well, the episode just ended...
* I wonder if Callan's sister is still alive...though, if she is, then who was buried in her grave?
* if the site was demolished, was it demolished with the sachel still in it? or did someone move it?
* I'm doubting those guys were sent by Iran -- yes, they were speaking Farsi...but so can a lot of Iranians who moved to other countries (and the kids of those emmigrants)
hell, the NCIS universe's Mossad knows to use English where they can be overheard - and the writers are not oft kind to Mossad.
(I know what you're thinking - "but why would someone want to frame Iran for something like that?" my answer is I don't know, but I simply thought it odd, and slightly suspicious) though, maybe for the same reason there was a JAG episode where a British officer made it look like an IRA fighter stole his American wife's newborn baby.
*shrugs*
the other thing you're thinking is "you know what I'm thinking? AAAHHHHHHHHHH! BRAIN BLEACH! BRAIN BLEACH! GET OUT OF MY HEAD!"
;D
edited to add:
another reason I doubt they were sent by Iran, is I couldn't get the question out of my head: why do the Iranians want to keep Callan from remembering his past? (much as I like to think this isn't NCIS:G, he does tend to stay front and center in the storylines)