Question: how many smithsonian museums are there in the work location of the president who signed the Endangered Species Act of 1973 into law?

<P0-S0> the post-9 / 11 veterans educational assistance act of 2008 is title v of the supplemental appropriations act of 2008, pub. <P0-S1> l. 110 -- 252, h.r. <P0-S2> 2642, an act of congress which became law on june 30, 2008. the act amended part iii of title 38, united states code to include a new chapter 33, which expands the educational benefits for military veterans who have served since september 11, 2001. at various times the new education benefits have been referred to as the post-9 / 11 gi bill, the 21st century g.i. <P0-S3> bill of rights, or the webb g.i. <P0-S4> bill, with many current references calling it simply the new g.i. <P0-S5> bill. <P0-S6> president george w. bush signed h.r. <P0-S7> 2642 into law on june 30, 2008. <SEP> <P1-S0> The Endangered Species Act of 1973 (ESA; 16 U.S.C. <P1-S1> § 1531 et seq.) <P1-S2> is one of the few dozens of United States environmental laws passed in the 1970s, and serves as the enacting legislation to carry out the provisions outlined in The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). <P1-S3> The U.S. Supreme Court found that "the plain intent of Congress in enacting" the ESA "was to halt and reverse the trend toward species extinction, whatever the cost." <P1-S4> The Act is administered by two federal agencies, the United States Fish and Wildlife Service (FWS) and the National Oceanic and Atmospheric Administration (NOAA). <P1-S5> The ESA was signed into law by President Richard Nixon on December 28, 1973, it was designed to protect critically imperiled species from extinction as a "consequence of economic growth and development untempered by adequate concern and conservation." <SEP> <P2-S0> The Smithsonian museums are the most widely visible part of the United States' Smithsonian Institution and consist of nineteen museums and galleries as well as the National Zoological Park. <P2-S1> The remaining ones are in New York City and Chantilly, Virginia. <P2-S2> Seventeen of these collections are located in Washington D.C., with eleven of those located on the National Mall. <P2-S3> As of 2010, one museum, the Arts and Industries Building, is closed in preparation for a substantial renovation, and its newest museum building, the National Museum of African American History and Culture, opened in 2016. <SEP> <P3-S0> Angelo J. Lano was an American field agent for the Federal Bureau of Investigation in Washington DC, notable for his work heading the investigation of, and appearing as a witness for, the Watergate scandal surrounding President Richard M. Nixon. <P3-S1> Lano was one of a number of FBI agents who was falsely accused as a source of information for Carl Bernstein and the "Washington Post" during the investigation, which helped shift White House suspicions away from Mark Felt, who was revealed as informant Deep Throat on May 31, 2005. <SEP> <P4-S0> the flag that flew during that episode in history became a significant artifact. <P4-S1> it remained in the possession of major armistead, who was promoted to brevet lieutenant colonel, and his family for many years. <P4-S2> eben appleton, colonel armistead's grandson, inherited the flag in 1878. in 1907, he lent it to the smithsonian institution, and in 1912 it was made a formal gift. <P4-S3> today it is permanently housed in the national museum of american history, one of the smithsonian institution museums on the national mall in washington, d.c. the flag was given to the museum in 1912, and has undergone multiple restoration efforts after being originally restored by amelia fowler in 1914.