article_snippet.sent: Los Angeles World Airports said: 'Los Angeles World Airports are constantly adjusting Los Angeles World Airports deployment strategies, and as a precaution, have increased the visibility of airport police.'
article_snippet.sent: LAWA is the airport oversight and operations department for the City of Los Angeles, according to the Orange County Register.
highlights_snippet.sent: In addition to Los Angles, some other US cities have increased security .