reporter: you won t give up? never give up. in panama, a city of roughly we are trying to tackle the problem with several different modes. one of them is the brand new metro. we had a modest forecast: 110,000 passengers per day in the first line. we are already over 200,000. our collaboration with citi has been very important from the very beginning. citi was our biggest supporter and our only private bank. we are not only being efficient in the way we are moving people now, we are also more amicable to the environment. ....