The threat to a fistful of petrodollars

[...]
Attending the annual meetings of the World Bank and International Monetary Fund, Kudrin caused his American hosts discomfort by openly questioning the dollar's pre-eminence as the world's "absolute" reserve currency.

The greenback's recent volatility and the yawning US trade deficit, "are definitely causing concern with regard to its reserve currency status," he said. "The international community can hardly be satisfied with this instability."
[...]