article_snippet.sent: Chris Early, who owns a production company in Knoxville, TennesseeKnoxville, Tennessee, bought a quadcopter to make commercials but A father decided A father could use a quadcopter for personal surveillance purposes too.
article_snippet.sent: Chris Early, who owns a production company in Knoxville, Tennessee, bought a quadcopter to make commercials but A father decided A father could use a quadcopter for personal surveillance purposes too .
highlights_snippet.sent: Chris Early, who owns a production company in Knoxville, Tennessee, bought a quadcopter to make commercials .
  
highlights_snippet.sent: However, he decided he could use a quadcopter for personal monitoring purposes too .
  