SAN DIEGO (AP) — A Yemeni lawmaker says in a lawsuit that U.S. military veterans who worked for a private security firm were hired as mercenaries to kill him in 2015 on behalf of the United Arab Emirates as part of a campaign by the U.S. ally that targeted political opponents. The lawsuit by Anssaf Ali Mayo in federal court in San Diego was unsealed last week, revealing details of the allegations against former executives and employees of Spear Operations Group, a private military contracting