[cjbos]

Its highly unlikely that any of those 4 people are DOJ employees. More likely 4 traders that have been interviewed and confirmed as much to the journalist.

[nonbel]

This is even worse than if it was DOJ leak. We would be dealing with a rumor started by people under investigation for manipulating bitcoin prices...

[dragonwriter]

Being interviewed in the course of an investigation means you are a potential witness, not necessarily a target or even subject of the investigation.