I'd argue that my biggest criticism of journalism as it is practiced is that many practitioners aren't even trying to be scientific. The pressure of deadline for regular publication creates huge incentive to publish not discovered truth, but a pre-ordained thesis that then lends itself to cherry-picked fact-hunting to bolster that thesis (and discarding of counter-evidence that would cast doubt upon the thesis).

I've been close enough on-the-ground to multiple reported stories to bear witness to this happening: quotes that I was present when they were given taken madly out of context because they one-fifth supported the reporter's idea and four-fifths refuted it. It's not a great way to find truth (not bad for concocting digestible stories though).