article_snippet.sent: An American flag is displayed before the baseball game between the New York Mets and the Philadelphia Phillies in New York .
article_snippet.sent: Police officers hold a giant American flag before the baseball game between the New York Mets and the Philadelphia Phillies at Citi Field the New York Mets and the Philadelphia Phillies at Citi Field .
article_snippet.sent: New York Police Department helicopters fly over Citi Field on Monday .