Saying American small business owners need a "Marshall Plan," 100 U.S. CEOs of large companies such as Starbucks, Salesforce and Walt Disney Co. urged Congress in a letter to provide more rescue aid for small businesses. "Small businesses are essential to our country's economic and social health," said a letter posted on the website of Starbucks CEO Howard Schultz. "They employ almost half of all private-sector workers and account for ...