NTSB: Lawmaker in plane crash flew despite vision problems

An Alaska state lawmaker who was involved in a July midair collision that killed seven people was piloting his plane even though his medical flight certification was denied eight years ago because of vision problems, a federal agency reported Tuesday.Alaska State Troopers identified the pilot as state Rep. Gary Knopp, 67, of Kenai, who was flying a Piper PA-12 when it collided with a de Havilland DHC2 shortly after both planes had taken off in the area of Soldotna, Alaska, on the evening of July