Navigators in four federally facilitated marketplaces all report an uptick in consumers' interest in enrollment assistance compared to earlier years, which they attribute to increased media coverage as well as a spike in premiums that has resulted both in more people seeking help and in larger subsidies. The navigators also say there have been no technical issues with healthcare.gov so far. HHS reported last Wednesday that more than 600,000 people had signed up for coverage in the 39 healthcare.gov states...