Miguel is an example of altruism (+audio).

For 30 years now, the specialist in Encrypted Communications, Miguel Alonso Santana, has been a voluntary blood donor.
Miguel Alonso Santana, a specialist in encrypted communications, has been a voluntary blood donor for 30 years. Every three months he goes to the provincial Blood Bank of Matanzas because he knows that his contribution is vital.
…ONLINE AUDIO.
Written by Dunia Bermúdez.