Fearing the power of subpoena if outside and professional technicians were used, Obama decided to build the government ObamaCare site using comparatively unskilled technicians from within his own body of supporters.

 Politico     Aetna CEO Mark Bertolini said earlier in the week on CNBC that the system was developed so late that standard rounds of functionality testing are “happening on the fly.” And he warned of potential breakdowns in other parts of the system once the early problems are unraveled.

[In fact, many computer professionals say that the Administration used old technologies out of the late 1990's rather than the most current and up to date methodologies,  available.  These professionals,  believe the entire system needs to be taken down and rebuilt, from scratch.  Compare my comments with those found in  USA Today:   ~ blog editor]
“There’s so much wrong, you just don’t know what’s broken until you get a lot more of it fixed,” he said. Bertolini predicted it could take three years to repair, but others in the health care industry are talking about a far shorter time frame, although they don’t want to be quoted by name even talking about “months” while HHS is being mum.

Web brokers that signed agreements with the administration to offer subsidized Obamacare plans on their websites have been unable to connect to the federal system. Federal health officials say they’re working to bring the e-brokers in, but the brokers say communication has been virtually nonexistent. . . . . . . . 

. . . . . . .  Facing such intense opposition from congressional Republicans, the administration was in a bunker mentality as it built the enrollment system, one former administration official said. Officials feared that if they called on outsiders to help with the technical details of how to run a commerce website, those companies could be subpoenaed by Hill Republicans, the former aide said. So the task fell to trusted campaign tech experts.
Even as early as 2010, HealthCare.gov was bug-ridden, a harbinger of problems to come. But few read the tea leaves because the site had a small fraction of the traffic it would get in October 2013.

“The wheels were practically coming off the wagon at that point, which should have been a clue that anything more than this — a nicely branded site with a lot of information and not much interactivity — was going to be impossible,” the former official said.
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