Seven banks have been subpoenaed in the probe, Reuters reports.
Barclays, UBS and JP Morgan are three of the seven, according to CNBC.
EUR/USD resistance still up at 1.2295/05.
Seven banks have been subpoenaed in the probe, Reuters reports.
Barclays, UBS and JP Morgan are three of the seven, according to CNBC.
EUR/USD resistance still up at 1.2295/05.
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