Answered call. It was a lady from the USO. Though I am a volunteer with the USO in Houston, I did not engage in conversation with her as I was busy. She was polite and we terminated the call.
Received the call 3/29/17 at dinner time. Caller ID displayed "Sterling VA". I did not answer and they left no message. Question; if it is the USO then why doesn't the caller ID say so and why isn't the USO an 800 number? Sounds suspicious to me.