RIO DE JANEIRO (Reuters) - When shots rang out last month in the first gun battle in seven years between Rio de Janeiro police and drug traffickers in Santa Marta, its reputation as a peaceful slum with stunning views and a popular samba night was shattered.
No one was injured in the maze of alleys and steps of the "favela" that is home to 6,000 people, but the shootout raised concerns a police campaign - for which Santa Marta was the model - is running out of steam a year before half a million visitors arrive for the 2016 Olympics.