WASHINGTON (AP).- A painstaking conservation effort to remove old patches and repair weak spots in a 714-year-old copy of the Magna Carta has revealed that the full text of that English declaration of human rights remains intact even though some words are faded and illegible to the eye, the National Archives said Tuesday. A $13.5 million gift from philanthropist David Rubenstein — owner of the handwritten document — is funding the conservation effort as well preparations for an upcoming exhibit.