Scenes from the field

RIO DE JANEIRO: "Drug trafficker stands guard with an AR-15 automatic rifle in an undisclosed Rio favela." - CNN's Miguel Castro. Brazil has stepped up efforts to secure its notorious slums ahead of the World Cup. Watch CNN's Shasta Darlington's report at <a href='http://edition.cnn.com/video/data/2.0/video/world/2014/04/24/pkg-darlington-brazil-army-occupation.cnn.html'>CNN.COM</a>. Follow Miguel (<a href='http://instagram.com/sambassando' target='_blank'>@sambassando</a>) and other CNNers along on Instagram at <a href='http://instagram.com/cnn' target='_blank'>instagram.com/cnn</a>.

RIO DE JANEIRO: "Drug trafficker stands guard with an AR-15 automatic rifle in an undisclosed Rio favela." - CNN's Miguel Castro. Brazil has stepped up efforts to secure its notorious slums ahead of the World Cup. Watch CNN's Shasta Darlington's report at CNN.COM. Follow Miguel (@sambassando) and other CNNers along on Instagram at instagram.com/cnn.