Last year in Las Vegas, I cashed out a couple of cash vouchers (worth around 60$) at the special ATMs located inside casinos. Finished my trip and headed back to Turkey. Then the failed coup attempt happened..
It is now almost a crime to have 1$ bills with serial numbers starting with F (Turkish government ties these bills to Fethullah Gulen - Gulenist movement in US which is believed to have staged the coup). A lot of citizens are being detained for long periods of time and questioned by Anti-Terrorism Bureau just by carrying these bills.
Some references in English:
[1] http://www.al-monitor.com/pulse/originals/2016/08/turkey-gulen-movement-one-dollar-fear.html
[2] http://www.chicagotribune.com/news/nationworld/ct-turkey-coup-u-s-banknotes-20160805-story.html
[3] http://aa.com.tr/en/todays-headlines/turkey-fetos-one-dollar-bill-mystery-solved/614338
And the big surprise, I had couple of these bills. Now of course, I immediately disposed those bills, I wonder if it could be possible to trace them back to their sources if I hadn't?
Do banks, ATMs and casinos track the serial number on the bills that they dispense ?