article_snippet.sent: So how does a flying machine that looks like a sophisticated lawn chair with helicopter blades invade such highly restricted airspace, as happened Wednesday, when a postal carrier from Florida landed a single-person aircraft on Capitol grounds?
article_snippet.sent: Well, I'm making an assumption based on the video footage, but it appears that a single-person aircraft on Capitol grounds is classified by the FAA as a gyrocopter.
article_snippet.sent: How much damage could a single-person aircraft on Capitol grounds have inflicted had a single-person aircraft on Capitol grounds been intended for nefarious purposes?
article_snippet.sent: Well, if a single-person aircraft on Capitol grounds had been crashed into a building, I feel confident that a building would have been triumphant.
article_snippet.sent: Not that a review of airspace security measures isn't in order, but I wouldn't be concerned that this event will become the next threat epidemic.
article_snippet.sent: As an airline pilot, I can say I am relatively confident that our nation's capital is secure from gyrocopter attacks orchestrated by misguided lunatics.
highlights_snippet.sent: How did gyrocopter fly on to Capitol grounds when FAA, defense forces keep tight rein on airspace?
  
highlights_snippet.sent: Les Abend says it's unlikely such a flight could pose a serious danger .