Health reform prospects drop when Americans hear potential financial trade-offs associated with expanding health insurance coverage, a poll indicates. For example, nearly seven in 10 people say they favor the concept of requiring employers to provide their workers with health insurance or contribute into a fund that pays to cover the uninsured. But if they hear the mandate would cause some employers to lay off workers, support falls to about three in 10 people, according to a new national survey conducted by the Kaiser Family Foundation and the Harvard School of Public Health.