NYSE: LMT Meta: Is the F-35 from Lockheed Martin worth it? That's one of the debates surrounding this blockbuster Lockheed (NYSE: LMT) program. Here's what investors need to know.

Lockheed Martin's (NYSE: LMT) critics will have you believe that the F-35 is a gross example of the U.S. government's runaway military spending.

And while the F-35 is by no means cheap - it is to be the most expensive program in defense contracting history - detractors don't seem to want to give the program any credit for what it is trying to do.

Here's why these debates shouldn't sour you on LMT stock...