we are riding with police officers here in tondo, manila.e looking for its antisocial behaviour. ‘tambays,’ or loiterers. in the last month, we have seen thousands of people apprehended for drinking in the streets, smoking in public, or walking around without t—shirts on. in this crowded city, where many live in small, stuffy shacks, it's normal for people to socialise in the streets. but now duterte is determined to eradicate what he calls loitering. the philippines is infamous for its full—to—bursting jails. with the president's crackdown on antisocial behaviour, the situation is getting much worse. outside, a van arrives, seemingly filled with children. but the police are not as keen for us to film them. manila is the world's most densely populated city. 21 million people crowd in here, and life at the bottom is pretty tough. the district of tondo is where many new arrivals to the city go. but it is hard to move on from here. it has become the most populous area of the philippine capital. it is squalid, drenched in poverty, and at the sha