Chinese President Xi Jinping (left) and Russian President Vladimir Putin (right).
&quotWhile Russia may pose the most immediate challenge, China is the bigger long-term threat," CIA director William J. Burns wrote in an op-ed for Foreign Affairs.
  • Chinese exporters are reportedly going "underground" as domestic banks pullback from transaction business with Russia, Reuters reported.
  • Many lenders have restricted transactions with Moscow, curbing payment options for Chinese firms.
  • Alternative channels include money brokers, and the possible use of cryptocurrencies.

Tighter US scrutiny of Beijing's trade ties is sending domestic exporters underground, Reuters exclusively reported on Monday.