Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: The NYPD have unveiled an elite terrorist unit as security was ramped up in major cities across the United States in the wake of the Paris terrorist attacks. In New York City, police increased bag checks in the subway system and at popular tourist destinations while Commissioner Bill Bratton revealed that the force was training to deal with an event similar to Friday's massacres. He also deployed the new terrorism task force of 560 officers, the Critical Response Command, on Monday, set up specifically to deal with threats and attacks in the city. During a press conference alongside Mayor Bill de Blasio he said: 'The world changed dramatically over the weekend.'New York City has increased security and police presence in the wake of Friday's terror attacks in ParisPolice are conducting more bag checks in the subway system and at popular tourist destinationsCommissioner Bill Bratton revealed that the NYPD was also training to deal with an event similar to Friday's massacresNew York's top cop unveiled a terrorism task force with Mayor DeBlasioHe said that information is being gathered in hopes of preventing an attack similar to the one that occurred in Paris 
 Question:_ announced security would be heightened at sensitive locations, telling the crowd that New York is the best equipped city in America to fight terrorism.

DeBlasio