US attempts to quell trafficking stagnate in coca-based economy
                                
                                
                                    (Newser) -
                                    Peru's cocaine business is growing again, sparking a spate of killings, threats, and US-funded attempts to stop it, the Los Angeles Times reports. Coca bush plots have increased by a third since 1999 to feed markets in Europe, East Asia, and Brazil—but growers are hard to collar because they...