evidence: At least 138 Salvadorans have been killed in the past seven years after being deported by U.S. authorities, a rights group said Wednesday in a report that highlighted the risk of returning migrants to the Central American nation. [...] The Salvadorans included in the report were deported for a variety of reasons, including losing asylum cases or committing crimes. Human Rights Watch did not break down the cases by reason for deportation. [...] Many of those killed after their return to El Salvador were targeted by gangs, which control huge swaths of the country.