1.   Radon exposure is the hottest issue among radiation scientists today - but it remains almost entirely unknown to the public.

2.   But perhaps the hottest issue with voters is prescription drug coverage for the elderly.

3.   But when that bubble bursts, the fallout may become the hottest political issue of the decade to come.

4.   Illegal immigration is the hottest issue in the debate but the influx of legal immigrants also is at issue.

5.   It is becoming the hottest issue under the Americans with Disabilities Act, a federal law that requires employers to accommodate workers with disabilities.

6.   It is the hottest issue in the upcoming May elections, and a test of Sinn Fein for the future.

7.   Most of the exchanges dealt with public education, which has emerged in Texas as the hottest local issue, as it has elsewhere in the country.

8.   Overdevelopment is the hottest issue in suburbia, as evidenced by Millbridge Village, which was ultimately rejected.

9.   Still, it is in the South where prayer is the hottest issue and where the line between permissible and impermissible behavior is most likely to be blurred.

10.   The hottest economic issue has been how to spend the surplus.