President Obama is set to speak at the White House today about the technical issues that have plagued the rollout of his signature healthcare law. The administration claims some 476,000 applications have been filed through federal and state exchanges. But they have not said how many people have actually enrolled. Now The New York Times reports it may be weeks or even months before the cascade of glitches is resolved. Unnamed sources say the enrollment process is masking deeper issues, and millions of lines of software code may need to be rewritten.