seventh annual report (issued September 2009) to the US Congress of the U.S.-China Economic and Security Review Commission. "Although attribution is a problem in cyber attacks, the scale and coordination of the attacks strongly indicates Chinese state involvement", said commission vice chairman Larry Wortzel. "In addition to harming U.S. interests, Chinese human and cyber espionage activities provide China with a method for leaping forward in economic, technological, and military development." The report cited that the number of cyberattacks from China against the US Department of Defense computer systems had grown from 43,880 in 2007 to 54,640 in 2008, a nearly 20 percent increase. Reuters reported that the Commission found that the Chinese government has placed many of its computer network responsibilities under the direction of the People's Liberation Army, and was using the data mostly for military purposes. In response, China slammed the report as "full of prejudice", and warning it could damage China-US relations. "We advise this so-called commission not to always view China through tinted glasses", Foreign Ministry spokesman Qin Gang said. In 2008 the Chinese government was accused of secretly copying information from the laptop of Commerce Secretary Carlos Gutierrez during a trade mission to Beijing in order to gain information on American corporations. The allegations were subsequently dismissed by Qin Gang, a spokesman for the Ministry of Foreign Affairs of the People's Republic of China. In November 2005 the United States arrested four people in Los Angeles on suspicion of being involved in a Chinese spy ring. Taiwanese-American scientist Wen Ho Lee (born in Nantou, Taiwan 21 December 1939) was accused and investigated on the grounds of espionage in 1999 but was acquitted of all charges except for mishandling classified data. In June 2015, the United States Office of Personnel Management (OPM) announced that it had been the target of a data breach targeting the records of as many as four million people. Later, FBI Director James Comey put the number at 18 million. The Washington Post has reported that the attack originated in China, citing unnamed government officials. James Comey said: "It is a very big deal from a national security perspective and from a counterintelligence perspective. It's a treasure trove of information about everybody who has worked for, tried to work for, or works for the United States government." The Voice of America reported in April 2020 that "U.S. intelligence agencies concluded the Chinese