Being smart about Social Security can make a huge difference to your financial security in your retirement. When it comes to making the most of Social Security, it's crucial to make sure you get one key decision right.

In the following video, Motley Fool investment planning editor Lauren Kuczala talks with longtime Fool contributor and financial planner Dan Caplinger about that important decision. Dan goes into detail about the ins and outs of making smart choices about Social Security, describing the impacts of your decision not just on your own benefits but those of your family as well. Dan concludes with advice on what factors to consider most closely in making the right decision for you and your loved ones.

Editor's note: The volume levels in some parts of this video are low. The Fool regrets any inconvenience.