A Nationwide March Proposal

My topic is obesity and the "Nationwide March" is directed towards curing obesity.  My audience would therefor be anyone and everyone "overweight".  Although, my proposal is somewhat satirical and if there were to be a nationwide walk/run for the morbidly obese than everyone, not just people overweight, would be affected and therefor be my audience as well.  But mainly...this will be directed toward people with weight issues and guiding them into better health.  My essay is formal.