Earlier, we reported that various currency brokers such as FXCM and FxPro, would - as a result of the soaring liquidity in the USDRUB pair - suspend trading in the Russian Ruble (while other merely hiked margins to ridiculous levels). It appears things have escalated again, and as FXCM just reported, instead of just politely advising clients not to open new USDRUB position tomorrow, it has advised anyone long, or short, the USDRUB that their positions will be forcibly shut in moments.