"Straight A's: Public Education Policy and Progress" is a biweekly newsletter that focuses on education news and events both in Washington, DC and around the country. The following articles are included in this issue: (1) Tax Returns: On Tax Day 2012, a 90 Percent High School Graduation Rate Would Yield $1.8 Billion Annually in Additional Tax Revenues, New Alliance Analysis Finds; (2) SIG-nificant Funding, SIG-nificant Improvement?: U.S. Education Secretary Duncan Reports "Very Encouraging Signs" Based on Initial Data; Outside Analyses Find School Improvement Grants Program a "Work in Progress; and (3) "A Stronger Nation": United States Makes Modest Progress in College Attainment Rates, New Report Finds. (Contains 1 footnote.)