"Just how much should Uncle Sam do to help Americans buy their own homes?
For 70 years — and for the last 15 in particular — the answer has been: Whatever it takes.
Now, policymakers are pausing to reconsider. In the next few months, they'll weigh whether there can be too much of a good thing when it comes to helping families finance the American Dream.
The rethink could mean a shake-up for a mortgage market addicted to government subsidies."
