Kansasw,
I'm not sure why you and others call it "absolute rubbish".
Several journalists have followed up on the story. They all seem to agree on the basic facts:
1) a group of 14 arab men were traveling together on the flight.
2) on the flight they behaved in a suspicious manner.
3) FBI, LA police and other security services met the plane on arrival and interviewed the men.
Presumably because they were informed by the captain of the flight which indicates that cabin crew and the captain thought the behaviour was suspicious enough to warrant investigation.
4) the men were subsequently allowed to continue their journey.
So it seems likely the 14 Syrians are completely innocent.
The article is written in a sensationalist style but it is certainly not "complete rubbish".