VATICAN CITY, VATICAN - NOVEMBER 24: Pope Francis meets Queen Silvia of Sweden during a break of 'Narcotics: Problems and Solutions of this Global Issue' seminar at the Pontifical Academies of Sciences on November 24, 2016 in Vatican City, Vatican. Following a special wish of Pope Francis, the Pontifical Academies of Sciences organized a two-day Workshop on Narcotics: Problems and Solutions of this Global Issue on 23-24 November. (Photo by Franco Origlia/Getty Images)
VATICAN CITY, VATICAN - NOVEMBER 24: Pope Francis flanked by Queen Silvia of Sweden, holds hia speech during the 'Narcotics: Problems and Solutions of this Global Issue' seminar at the Pontifical Academies of Sciences on November 24, 2016 in Vatican City, Vatican. Following a special wish of Pope Francis, the Pontifical Academies of Sciences organized a two-day Workshop on Narcotics: Problems and Solutions of this Global Issue on 23-24 November. (Photo by Franco Origlia/Getty Images)
VATICAN CITY, VATICAN - NOVEMBER 24: Pope Francis flanked by Queen Silvia of Sweden poses for a picture at the Pontifical Academies of Sciences with participants to the 'Narcotics: Problems and Solutions of this Global Issue' seminar on November 24, 2016 in Vatican City, Vatican. Following a special wish of Pope Francis, the Pontifical Academies of Sciences organized a two-day Workshop on Narcotics: Problems and Solutions of this Global Issue on 23-24 November. (Photo by Franco Origlia/Getty Images)
VATICAN CITY, VATICAN - NOVEMBER 24: Pope Francis flanked by Queen Silvia of Sweden leaves the Pontifical Academies of Sciences at the end of 'Narcotics: Problems and Solutions of this Global Issue' seminar on November 24, 2016 in Vatican City, Vatican. Following a special wish of Pope Francis, the Pontifical Academies of Sciences organized a two-day Workshop on Narcotics: Problems and Solutions of this Global Issue on 23-24 November. (Photo by Franco Origlia/Getty Images)
VATICAN CITY, VATICAN - NOVEMBER 24: Pope Francis meets Queen Silvia of Sweden during a break of 'Narcotics: Problems and Solutions of this Global Issue' seminar at the Pontifical Academies of Sciences on November 24, 2016 in Vatican City, Vatican. Following a special wish of Pope Francis, the Pontifical Academies of Sciences organized a two-day Workshop on Narcotics: Problems and Solutions of this Global Issue on 23-24 November. (Photo by Franco Origlia/Getty Images)
