The 360 degrees turn, as described by the Greek Defence Minister, is a good pilot manoeuvre to increase drag and thus accelerate the descent.
Well in theory it is, and certainly has it's uses on smaller types, especially high performance types, especially if you load it up...... However whether it is an appropriate, sensible or "good" manoeuvre to employ on a transport category aircraft at night is another matter...and might be "interesting", if not impossible, with functioning FBW.
Basil - good point, thanks.