This week on our Karr on Culture podcast: The world's most popular sport owes something to the U.S. — and Americans could stand to learn a thing or two about soccer (http://www.pbs.org/wnet/need-to-know/files/2010/05/karronculture-badge.gif)This year's World Cup (http://www.fifa.com/) is proving to be a big hit (http://www.latimes.com/entertainment/news/tv/la-et-world-cup-20100617,0,3002069.story) among American TV viewers. The last time this many of us watched the world's most popular sporting event was when we hosted it ourselves (http://en.wikipedia.org/wiki/1994_FIFA_World_Cup) in 1994. Yet many Americans still don't understand the game -- and others seem to outright loathe (http://www.alan.com/2010/06/10/warning-if-you-like-soccer-you-may-hate-america/) it. Stefan Szymanski (http://www.cass.city.ac.uk/faculty/s.szymanski/Stefan_Szymanski.html) has some ideas about that. He's a professor of economics at Cass Business School (http://www.cass.city.ac.uk/) in London who studies the business and culture of sports worldwide. He says some Americans resist soccer because they fear the creep of globalization and worry that the game erodes American exceptionalism. Yet U.S. sports played a big role (http://books.google.com/books?id=c0vzRdntD0MC&lpg=PP1&ots=WIbmoPj3sJ&dq=national%20pastime%20szymanski&pg=PP1#v=onepage&q&f=false) in the evolution of soccer as a professional game. At the same time, he thinks American professional sports could learn a thing or two (http://books.google.com/books?id=GO4yO0CyxTMC&lpg=PA84&ots=uCY3mnvdxm&dq=fans%20of%20the%20world%20unite%20szymanski&pg=PA84#v=onepage&q&f=false) from soccer. And he thinks it won't be long before the United States men's national team (http://www.ussoccer.com/Teams/US-Men.aspx) comes to dominate the game.