conference, HISD asserted that The New York Times published the story in an attempt to discredit the Bush administration's new accountability standards for school districts nationwide, which were partly modeled after HISD's system. In 2005, HISD enrolled evacuees from the areas affected by Hurricane Katrina who were residing in Houston. The Houston Astrodome, the shelter used for hurricane evacuees, is located within the HISD boundaries. Many Katrina evacuees stayed for the long term within the Houston ISD boundaries. Walnut Bend Elementary School's enrollment increased from around 600 to around 800 with the addition of 184 evacuees; Walnut Bend, out of all of the Houston-area elementary schools, took the most Katrina victims. Nearby Paul Revere Middle School, located in the Westchase district, gained 137 Katrina victims. Revere, out of all of the Houston-area middle schools, has taken in the most Katrina victims. Houston ISD's "West Region," which includes Walnut Bend and Revere, had about one-fifth of Houston ISD's schools but contained more than half of the 5,500 Katrina evacuees in Houston schools. At the start of the 2006-2007 school year, around 2,900 Hurricane Katrina evacuees were still enrolled in Houston ISD schools. Around 700 of them were held back due to poor academic performance. 41% of evacuee 10th graders and 52% of evacuee juniors were held back. According to the October 2006 "For Your Information" newsletter, the eleven HISD schools which took the largest number of Katrina evacuees were: Elementary schools: Bonham, Foerster, McNamara, Walnut Bend Middle schools: Fondren, Revere, Sharpstown Middle High schools: Lee, Sharpstown High, Westbury, Westside A University of Houston study concluded that the presence of Katrina evacuees did not impact the test score grades of native Houstonian students. In 2007 the Federal Bureau of Investigation, the Federal Communications Commission, and the United States Department of Justice began an investigation probing business relationships between Micro Systems Enterprises, a vendor, and HISD. Frankie Wong, former president of Micro Systems, and two Dallas Independent School District administrators received criminal charges. As of 2007 several existing HISD schools were converting to K-8 school setups while other new K-8 schools were opening. Prior to the bond election in November 2007, the district abandoned a proposal to convert several schools into K-8 campuses due to African American neighborhoods communities resisting proposed school consolidations. 2010s In 2011 the Texas Education Agency ordered the North Forest Independent School District (NFISD) to close, pending approval from