If you worked in a hospital for 20 years as I have, you would know why.
In short, ignorance, prejudice, politics and "pie-slice" grabbing.
And that is is. Period. Any Physician worth his salt recognizes that Çhriropractic has a place in the spectrum of treatments.
As I said in an earlier post, Blue Cross+Blue Shield would NEVER EVER pay for it if it did not have some value. Take that to the bank. Believe me, I work with Radiology billing, and we have to use big tongs and nuclear weapons to get the money we deserve for mainstream radiology exams that are performed. If they could deny Chriropractic, believe me, they would.
Did they pay for Vioxx, Seldane, Hisminal, Rezulin, and all the other pulled from the market medications? Did they pay for all those useless childhood tonsillectomies surgeons used to do? Did they (and do they still perhaps) pay for hysterectomies done by OBGYN's who did the operation on every one of their long-time patients without exception?
I would say that the only thing worse than relying on the government as a judge for what medical treatments are safe and effective would be to rely on Blue Cross.