Barack Obama has nominated Mari Del Carmen Aponte to be Ambassador to El Salvador:

1. About a decade ago she was accused of being a spy or asset for Cuban intelligence; her boyfriend at the time visited the Cuban consulate in Washington DC on a regular basis and she broke up with him after he wanted to take a trip to Cuba. She was apparently cleared of the charges. For excerpts from contemporaneous articles, see mediamatters.org/research/200912160019 and this.

2. Assuming the claims that she was a Cuban asset are completely untrue, the more worrisome things about her are that she was a board member of the PRLDEF and the National Council of La Raza, both of which are far-left racial power groups. Sonia Sotomayor was also a board member of the first and a member of the second; Obama recently nominated former NCLR president Raul Yzaguirre to another ambassorship; and administration official Cecilia Munoz was an NCLR VP before taking her current job.

A bio follows.

From this:

Mari Del Carmen Aponte is currently an attorney and independent consultant with Aponte Consulting. From 2001-2004, Ms. Aponte was the Executive Director of the Puerto Rican Federal Affairs Administration (PRFAA). Prior to that, she practiced law for nearly twenty years with Washington D.C. based law firms. Ms. Aponte also served as a member of the Board of Directors of the ASPIRA Association, the National Council of La Raza and the Puerto Rican Legal Defense and Education Fund. She is also a member of the Board of the University of the District of Columbia and Rosemont College. She served as president of the Hispanic National Bar Association; the Hispanic Bar Association of the District of Columbia; and is a member of the District of Columbia Judicial Nominations Commission. In 2005, she was also elected to the Board of Directors of Oriental Financial Group (NYSE-OFG). In 1979, as a White House Fellow, Ms. Aponte was Special Assistant to the United States Housing and Urban Development Secretary Moon Landrieu. Ms. Aponte has a B.A. in Political Science from Rosemont College, a M.A. in Theatre from Villanova University, and a J.D. from Temple University.