In April 2013, chaos erupted in Boston near the finish line of one[ZiYuantun.Com] of the world's oldest and most prestigious marathons. It was the worst terrorist attack on the United States since 9/11 and led to one of the most extensive and public manhunts in American history. Now, as the one-year anniversary approaches, National Geographic Channel presents a special two-hour event, Inside the Hunt for the Boston Bombers. 译文(2): 2013年4月，世界上最古老、最负盛名的马拉松之一的终点线附近，波士顿爆发了混{资源屯-ziyuantun.com}。这是自9/11以来美国遭受的最严重的恐怖袭击，并导致了美国历史上最广泛和最公开的搜捕行动之一。现在，随着一周年纪念日的临近，国家地理频道推出了一个特别的两小时活动，内部寻找波士顿轰炸机。