"But while the Bridge of Knowledge is one of the most visible symbols of Rio's economic boom, it has also underlined the city's struggle to escape its past. Drug traffickers who control the Complexo da Mare, a giant slum next to the bridge that tourists pass on their way from the airport to the southern beaches, demanded a $2m (£1.3m) bribe to allow its construction, according to the local press." (Quoted from article)