Japanese Ministry of Finance (MoF) official Asakawa is back on the wires now, via Reuters, noting that the Ministry will take appropriate steps on FX if needed.
Additional Comments:
FX moves are very volatile, I am worried.
G7 and G20 have confirmed cooperation on FX is possible if needed.
Excessive FX moves are undesirable for a stable economy.
Shrinking US-Japan spreads is one reason for yen strength.