As of this morning, US gov't is suggesting that non-essential travel to Turkey be postponed. But who knows - by late April that might be lifted. And today's warning also said don't go to Turkey near the Iraq border, which I think your stay wouldn't be near! I got my visa at the Turkish counsel office in LA (since I live in the LA area); not a biggie to do. Sounds like you can get it now at the border, which you couldn't do a few years ago. I quite enjoyed my trip to Turkey; hope you do too.