North America metropolitan area by population in North America: Greater Mexico City. Canada also breaks into the top ten largest metropolitan areas with the Toronto metropolitan area having six million people. The proximity of cities to each other on the Canada–United States border and Mexico–United States border has led to the rise of international metropolitan areas. These urban agglomerations are observed at their largest and most productive in Detroit–Windsor and San Diego–Tijuana and experience large commercial, economic, and cultural activity. The metropolitan areas are responsible for millions of dollars of trade dependent on international freight. In Detroit-Windsor the Border Transportation Partnership study
America Is in the Heart country. In this personal literature, Bulosan argued that despite the suffering and abuses he experienced, America was an unfinished "ideal in which everyone must invest (...) time and energy, (...) this outlook leaves us with a feeling of hope for the future instead of bitter defeat." According to Carlos P. Romulo when he was interviewed by The New York Times, Bulosan wrote "America Is in the Heart" with "bitterness" in his heart and blood yet with the purpose of contributing "something toward the final fulfillment of America". Through "America Is in the Heart", Bulosan was able to share a unique