Critics question whether push against corruption and human trafficking marks genuine change amid growing poverty

Kamala Harris, the US vice-president, has announced a new anti-corruption drive, economic aid and tougher enforcement against human trafficking during a visit to Guatemala.

But Harris, on her first foreign trip as vice-president, faced sceptical questions over whether the measures she announced would represent a real change in US policy in the region, at a time of worsening poverty and corruption.