Though the symbol was noted after groundbreaking in 1967 Navy officials made a decision to leave it as it was designed, despite the fact that from the air it is clearly visible. Another picture shows a helicopter landing pad to the right of the swastika shaped buildings. Therefore, perhaps daily, the Naval barracks swastika was seen from the air.
United States ties to Nazi Germany go back to World War II, in the form of Operation Paperclip. From the looks of this Naval Base, perhaps they even continue today.