Ah, yes, the ongoing debate. Some health organizations and governments say yes; while others say no.
Who is right?
I personally choose to wear a face mask. I would rather be overly cautious, preferring to have just one more factor to lower my chance of contracting such a serious disease.
It is my choice. I have the freedom to choose what I feel best for myself as well as my family. (If I get sick, they will also most likely catch it.)
BBC news has a good article summing up current thoughts on face masks.