RIO DE JANEIRO, BRAZIL - President-elect Joe Biden's arrival in the White House is expected to bring a shake-up of US-Mexican cooperation in a bloody war on drugs that has failed to rein in powerful cartels, experts say.
Mexico has seen more than 300,000 murders since deploying the military in the anti-narcotics fight in 2006, most of them blamed on criminal gangs, while drugs continue to flood across its northern border.
Outgoing US President Donald Trump has been a staunch supporter of tough action against the drug lords, calling for a "war" on the cartels . . .