FILE PHOTO: Minister for University Education, Science and Technology Hugbel Roa talks to the media during a news conference regarding the new cryptocurrency the Petro, in Caracas, Venezuela, January 31, 2018. REUTERS/Marco Bello
FILE PHOTO: Minister for University Education, Science and Technology Hugbel Roa talks to the media during a news conference regarding the new cryptocurrency the Petro, in Caracas, Venezuela, January 31, 2018. REUTERS/Marco Bello