Americans could pay billions of dollars more in new taxes for a few years before they're likely to see significant change in the nation's healthcare system under legislation that Congress is considering. Some analysts said that's not necessarily bad. Delaying major healthcare changes until at least 2013, as the pending Senate and House of Representatives bills would do, would give the government sufficient money and time to get things right. Critics counter that there's no guarantee that the money will be enough, and in the meantime, higher taxes could stifle an ailing economy.