In this Sunday, July 14, 2013 photo, youth play alongside a polluted river in the Varginha area of the Manguinhos slum complex where Pope Francis is expected to visit during his trip next week to Rio de Janeiro, Brazil. In one of the key events of his trip, the church’s first Jesuit leader will venture into this rough slum that sits along a violence-soaked road known by locals as the Gaza Strip. (AP Photo/Felipe Dana)

Students walk to school past military police officers patrollong in the Complexo do Alemao slum in Rio de Janeiro, Brazil, Tuesday March 27, 2012. Military police officers are replacing army soldiers patrolling the area at the slum complex. (AP Photo/Felipe Dana)

In this June 17, 2013, file photo, protestors are reflected on the glass of a building, left, as they march in Rio de Janeiro, Brazil. In a poll last year, more than three quarters of Brazilians said they’’re certain corruption has infused the World Cup. Their anger fueled widespread and often violent anti-government protests last June that sent more than 1 million Brazilians into the street during FIFA’s Confederations Cup soccer tournament, the warm-up event to the World Cup. (AP Photo/Felipe Dana, File)

A man wearing a headdress and another wearing a ski mask sit on a windowsill on the site of an old Indian museum, in Rio de Janeiro, Brazil, Saturday, Jan. 12, 2013. Police in riot gear on Saturday surrounded the site, now an indigenous settlement of men and women living in 10 homes, and prepared to enforce their eviction. The settlement is next to the Maracana stadium, pictured in background, which is being refurbished to host the opening and closing ceremonies of the 2016 Olympics and the final match of the 2014 World Cup. The streets around the stadium will also undergo a vast transformation as part of the area’s transformation into a shopping and sports entertainment hub. (AP Photo/Felipe Dana)

In this photo taken Dec. 17, 2010, Gustavo Nascimento da Silva, 5, flies his kite at the Santa Marta slum in Rio de Janeiro, Brazil. In 2008 police stormed Santa Marta to evict the dealers as the community became the pilot in a program to root out gangs and bring government services to slums long abandoned by the state. The program has since been replicated in a dozen slums, all in a bid to make one of the world’s more dangerous cities safer before the 2014 World Cup and the 2016 Olympics. (AP Photo/Felipe Dana)

A resident holding a baby hides behind a door as an armored police vehicle patrols during an operation at the Complexo do Alemao slum in Rio de Janeiro, Brazil, Sunday, Nov. 28, 2010. Rio’s most dangerous slum that was the backbone of the city’s biggest drug gang was taken by 2,600 police and soldiers Sunday, an unprecedented accomplishment by authorities in their fight to secure this seaside metropolis that will host the 2016 Olympics. (AP Photo/Andre Penner)

An alleged drug trafficker aims a weapon while escaping in a motorcycle at the Complexo do Alemao in Rio de Janeiro, Brazil, Saturday, Nov. 27, 2010. Occasional gunfire broke the tense stillness Saturday morning as armored vehicles prepared to push past barriers into Rio’s most dangerous slum, as police increased pressure on drug traffickers believed to have ordered the wave of violence that has terrorized the city this week. (AP Photo/Felipe Dana)

This Sept. 7, 2012 photo shows sunbathers at Ipanema beach in Rio de Janeiro, Brazil. Rio boasts some of the world’s most stunning urban beaches and they’re worth several visits. (AP Photo/Felipe Dana)