In Turkey, suspicion of the West links the coup plotters via their cash, as reported by Tulay Cetingulec in AL Monitor:
One-dollar bills have been found on high-ranking officers involved in the July 15 coup attempt, in what is perhaps the most bizarre of the many oddities to emerge from the massive crackdown on the Gulen community, the accused culprit in the putsch. The $1 bills have been found also on policemen, judges, academics, businessmen, teachers and other civilians linked to the Gulen community, the government’s former ally, which it now calls the Fethullah Gulen Terror Organization (FETO).
The bills are said to denote membership in the secretive group, and their serial numbers are believed to have coded meanings. Justice Minister Bekir Bozdag has said the $1 bill “is undoubtedly of some important function within FETO,” while Prime Minister Binali Yildirim has vowed to defeat “the lowlifes who sell their souls for $1.”
Assuming these are authentic, just how information assigned by a third party could have a coded meaning stretches credulity, although a very sophisticated operation could do it – or, as is explained (not really authoritative, could be someone making it all up) here, very simple:
One of the exchange offices Al-Monitor visited had accumulated hundreds of $1 bills, with one employee grumbling, “It’s not like before. People are afraid to both buy and sell them.” Another currency dealer said the demand for $1 bills ended “at a stroke” after Gulenists were reported to use them for secret communication. “People have come to see them as criminal tools,” he added. A third shop had done away with the $1 bill altogether. “No $1 bills here,” the dealer said. “Neither buying nor selling.”
Yet, not all $1 bills are of an “incriminating” nature. The serial number matters. According to media reports, a serial number that begins with the letter F denotes that the holder is a top Gulenist leader, while C is for lower-level managers and J for ordinary members. Other reports claim the $1 bills were blessed personally by Fethullah Gulen, the US-based cleric heading the sect, before being distributed to members, and that the serial numbers serve as a sort of ID number, the records of which Gulen keeps at his mansion in Pennsylvania.
This has the effect – possibly primary – of effectively removing one of the greatest of currencies from usage in Turkey. A suspicious person might suspect this scheme is just one step in a purposeful attempt to make Turkey more insular and turn them away from the secular ways of the West.