An Islamic cultural centre close to the site where New York's World Trade Center once stood has opened quietly in spite of scenes last year of vehement protests from those who said the area should not house a mosque. The opening ceremony for the Park51 centre on Wednesday featured a photo exhibit called "NYChildren", displaying over 160 portraits of immigrant children living in New York. Sharif El-Gamal, the center's developer, said the biggest error on the project was not involving the families of 9/11 victims from the start. "We made incredible mistakes," El-Gamal told The Associated Press in an earlier...