One way the press is dishonest is by omission. It sure would be nice to know how much of the training and arms to “friendly rebels” in Syria ended up with ISIS. Besides which, the US is operating in a sovereign nation which never showed hostility to the US without the permission of Syria. Those details never make it into “news” stories.
They always say it’s the FSA is Al Nusra.
Google Al Nusra and click on images. They have the same black flag of Al Qaeda and ISIS. It’s the same group. Just a different names to confuse the public.