There is no shortage of good ideas for how we can reform our healthcare system. Nearly every other country in the developed world has a healthcare system that’s less expensive, more efficient and has better outcomes than ours. We could easily take all the best ideas from all the existing systems in other countries to create more efficient and effective ways to deliver healthcare in the US, were it not for the resistance each new idea would face. At least $1 trillion is wasted each year in our healthcare system, but the people getting that $1 trillion can use that money to fight reform at every turn.
Never apologize for or otherwise undercut the argument you've made or leave your readers with the sense that "this is just little ol' me talking." Leave your readers with the sense that they've been in the company of someone who knows what he or she is doing. Also, if you promised in the introduction that you were going to cover four points and you covered only two (because you couldn't find enough information or you took too long with the first two or you got tired), don't try to cram those last two points into your final paragraph. The "rush job" will be all too apparent. Instead, revise your introduction or take the time to do justice to these other points.