1.   If the government decides to require airplanes to fly under instrument rules it would overwhelm the FAA, experts said.

2.   In Vermont, it was instrument rules in a thick fog that hugged the hillsides.

3.   That means they have to take off and land using instrument flight rules, a more time-consuming process, he said.

4.   Ropelewski said that the FAA has good statistics on flights conducted within controlled air space and in line with instrument flight rules.