Minneapolis's interstate bridge collapse has caught the attention of the world. Federal officials flew to the state yesterday (Thursday) to pledge financial and technical support for the recovery effort. Members of the news media from far and wide also flocked to the accident site. And over the next 24 hours, both President Bush and his wife Laura will make separate visits to the city.In stark contrast to all of the attention is the recovery effort itself. Very little progress has been made so far. The number of confirmed dead remains unchanged at four, with 20 to 30 people still reported missing. As Minnesota Public Radio's Lorna Benson reports, it's an indication of the enormous challenges facing the recovery workers.{