Some 2.9 million people in Hong Kong -- anyone born before 1997 -- are eligible for British National (Overseas) status and Britain has said they could be eligible for citizenship one day. China's plan to impose a sweeping national security law on the city in response to huge pro-democracy protests has many Hong Kongers mulling the prospect of leaving.
"It is hard to do anything more in this city, because you know that every single objection will be met with an iron fist," says one BN(O) passport holder.
