Why is the introduction of more competition into the NHS controversial?

***Remember, the NHS is not being privatised, but some people fear it might be in the future***

Just been looking at your short answer questions. Thought I'd share some of my reading prep with you:

• http://www.guardian.co.uk/public-leaders-network/2011/may/18/nhs-reform-why-competition-works
• http://www.telegraph.co.uk/health/healthnews/8823053/More-NHS-competition-would-cut-death-rate.html
• http://www.independent.co.uk/life-style/health-and-families/health-news/competition-has-not-made-nhs-better-say-experts-2368099.html
• http://www.guardian.co.uk/society/2011/jul/19/nhs-services-open-to-competition