ISIL may be afraid of AIR STRIKES by U.S.A.
The action of this time is very strange.
If ISIL kill hostages more, Air Strikes become so heavy more and more.
They know that very well.
I think that the system of ISIL isn't strong.
Many faction exist.
Many bosses there.
Many opinion there.
They are suffering from how to control their soldiers.
Because many soldiers want to go home and go back their countries.
ISIL has big problems now.