US President Barack Obama said on Monday he was considering whether or not to meet his Filipino counterpart, Rodrigo Duterte, this week, amid alarm over the latters campaign against illegal drugs in which thousands of people have died. Speaking at a G20 meeting in China, and before travelling to Laos for a summit where he was due to hold talks with Duterte, Obama said he had asked his team to find out if constructive, productive conversations were possible.