"The worry, at this point, is that the site is working in ways that are visible but broken in ways that are harder to see. The Obama administration won't answer direct questions on the percentage of '834s' -- the forms insurers need to sign people up for the correct policies at the correct prices -- that are coming through with errors. Robert Laszewski, a health-industry consultant with deep contacts among the insurers, told the National Journal the problem is getting better, but that his clients are still seeing a five percent error rate. That's still too high."

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