In this hourlong, education-focused special, The World delves into the challenges immigrants face in accessing higher education, looking at issues such as language, borders and costs. US employers who say they can't fill jobs want Congress to raise the number of visas to foreign college graduates. Also, thousands of students attending US colleges and universities actually reside in Mexico. But when border wait times can be two to four hours long, it takes a special dedication to get to class each day. And, we meet several students who struggled to battle Mexican and US bureaucracy to be able to transfer schools. Plus, is the US still the number one education destination?