Brazil has more than three million "ghost citizens": people who don't have a birth certificate or ID card. In administrative terms they do not exist and have no access to public health care or education. They also can't vote. But in the run-up to October's elections, these people could constitute a potential political force. Our correspondents Perrine Juan, Louise Raulais and Tim Vickery take a closer look at the legal and social workers who are trying to help "ghost citizens".
On April 12, people ran from a smoke-filled New York City subway train as they desperately tried to get away from a shooter on board. The man opened fire during the morning rush hour in an attack that left some 20 people injured. The shooting came as Joe Biden made a fresh bid to boost gun control in the US. The US president announced new measures cracking down on so-called "ghost guns": difficult-to-trace weapons that can be assembled at home. They have increased tenfold over the last five years.
