A key ObamaCare official engaged in a “cruel and uncaring march” to launch the federal health care website last year and wasn’t open to seeking a delay despite concerns, according to a newly revealed email from her former second-in-command.The damning email from Michelle Snyder, formerly the No. 2 official at the Centers for Medicare and Medicaid Services, was released to FoxNews.com ahead of a Wednesday House Science, Space and Technology subcommittee hearing on the security and botched rollout of Healthcare.gov.In the September 2013 email to Todd Park, the former Chief Technology Officer of the U.S., Snyder characterized her then-boss, CMS...