why give your family just any eggs when they can enjoy the best? eggland's best. the only eggs with more fresh and delicious taste. plus, superior nutrition. which is now more important than ever. only eggland's best. >> diaz: the streets of hayward, wisconsin, were packed with cross-country skiers this weekend for the american birkebeiner. boy, that looks hard. it's the largest cross-country skiing event in north america. 1,300 people raced more than 30 miles. warren buffett's berkshire hathaway is booming, but unlike many corporations that seek tax breaks, today the billionaire investor boasted that the company paid $3 billion in federal taxes last year.