"In an event like this, it's normal for the DOJ to be conducting an investigation. We are fully cooperating and do not believe we are a target of the investigation," Alaska Airlines said in an emailed statement to Reuters.The Wall Street Journal earlier reported, citing documents and people familiar with the matter, that the investigators have contacted some passengers and crew on the Jan. 5 flight, which made an emergency landing in Portland, Oregon, after a fuselage panel ripped off midair.The investigati ...