Fridays are awesome! And after a week of laryngitis it feels good to be able to say that like that.Thanks for sticking with me. I'm Carl Azuz for CNN STUDENT NEWS.First up, a U.S. airstrike in Syria. But this attack wasn't aimed at ISIS.It was aimed at Khorasan, another terrorist group operating in the war-torn nation.The attack was on Wednesday night, the target was a vehicle that the U.S. believed was carrying a bomb maker from France.Considered a very dangerous operative, he joined up with Khorasan terrorists in Syria.U.S. officials don't know if he was killed. They think he was. But they say they are making progress against ISIS and Khorasan in Syria.They has targeted Khorasan before, it's made up of former members of the al Qaeda terrorist group,and the U.S. believes it's plotting new attacks against Western countries, including America.Time for The Shoutout. Cytology is the study of what? You know what to do.Is it resources? Cultures? Cells or blood. You've got three seconds, go!A cytologist studies living cells, and may focus on those that cause disease. That's your answer and that's your shoutout.In one way cytologist do that is by looking at blood samples.Those can indicate how organs are functioning, what disease people may have.From heart disease to pre-diabetes to cancer.