The U.S. Army has apologized to veterans wounded by exposure to chemical weapons in Iraq. A report last year found the Pentagon failed to act on claims by more than 600 U.S. servicemembers who reported being exposed to chemical weapons in Iraq since 2003. A New York Times investigation found the Bush administration concealed the discovery of chemical weapons in Iraq that had been developed with U.S. support in the 1980s — and then denied medical care to the wounded U.S. soldiers involved. U.S. Army Under Secretary Brad Carson has admitted the military failed to follow its own policy for treating wounded soldiers and has pledged more medical screening and support.