Remember when, to the chagrin of the Obama administration, Healthcare.gov launched in October 2013 only to crash when users tried to sign up for health insurance plans? Part of that failure can now be blamed on government employees' sloppy handling of $600 million in private contracts to construct the website, a new government audit has found, Bloomberg reported Tuesday. Although the final cost of building Healthcare.gov depends on what costs go into the calculus, with one report in July 2014 saying $840 million and another in September 2014 saying more than $2 billion