21.   It was the first sampling of public opinion on the issue, which has ignited fierce debate ahead of elections expected by the end of the year.

22.   That has already ignited debate over her Italian ancestry and whether only natural-born citizens should qualify for the office.

23.   The February court decision ignited a debate over surrogate motherhood in Italy, including attacks on the practice from the Roman Catholic church and the medical establishment.

24.   The policy has ignited a debate about free speech in this Orange County oceanside resort community.

25.   The suspensions ignited fresh debate over whether the Chinese should be allowed to continue competing internationally.