If that link was supposed to be persuasive, it probably wasn't the best example as that physician hasn't been charged with anything and it appears the raid was unfruitful.
As for the second link, it's more of an example of how stupid mandatory sentencing is for drug crimes. The patient in question maintains that he didn't forge scripts (a felony), the prosecution managed to convince a jury of his peers that he did. I am not going to simply accept OPED that the physician lied under oath. Sorry.
For the first link, if you hold yourself to be a "pain specialist" and prescribe narcotics, you know you are going to be under the microscope by the DEA. It's the cost of doing business. Most medications aren't monitored by the DEA, so if you choose to deal in pain management, you accept that the DEA is going to be up your keester with a microscope.
Of course, if there weren't well established patterns of wrong doing by physicians and patients for medications that are chemically the same as heroin, then the DEA probably wouldn't care.
http://www.deadiversion.usdoj.gov/crim_admin_actions/doctors_criminal_cases.pdf
As for me, after four years as a student, I have seen more patient scams to get narcotics then I can imagine. From the patient who complained of massive belly pain to the point of crying on physical exam (and then walked out of the hospital tear-free when told she wouldn't get narcotic pain pills) to the "I am allergic to everything but dilaudid" canard to loath narcotics. They have their place, unfortunately, about a decade of over prescribing them as a whole by the health care community "Pain, the 5th vital sign", there are some real bad actors in the world.
Underlying any physicians actions is (or should be) what is best for the patient - and not fear of legal sanction. Over prescribing pain pills is bad medicine.