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: In 2010, Ciudad Juarez was considered to be the murder capital of the world, causing tourism to plummet. Back then, the murder tally was recorded at 3,000, but last year 538 were killed. Per capita, that number is similar to the murder rates of cities like Detroit or New Orleans. So, why has Juarez been unable to shake its bad reputation? In past decades, Americans would flock across the border from El Paso, Texas, to visit family and friends, frequent bars and restaurants and participate in the medical tourism for which the area is famous. Today, however, the forty mile stretch known as the Juarez Valley has a reputation of being so dangerous that even police don't dare to enter.In 2010, Ciudad Juarez was considered to be the world's murder capitalBut today, murder per capita numbers are comparable to New OrleansJuarez is attempting to rid itself of its reputation and boost tourismRecent civic-pride boosting campaigns include 'Juarez is Waiting For You' 
 Question:As the authorities began to take control of the city again in 2012, much of the business of borderland narco-trafficking moved into the _.

Juarez