Website glitches aside, millions of Americans are now eligible to get health insurance. But there are a lot of people who will still be left out because they live in states that have declined to participate in the Medicaid expansion: “Those excluded will be stranded without insurance, stuck between people with slightly higher incomes who will qualify for federal subsidies on the new health exchanges that went live this week, and those who are poor enough to qualify for Medicaid in its current form, which has income ceilings as low as $11 a day in some states.”