MAS is the Movment For Socialsm (in English), it’s Evo Morales Party and the most popular party in Bolivia. Bloqueos means blockade, Throughout the country, trade unions and people sympathetic to MAS are holding general strikes and protests in response to the interim governments attempts to suppress the party. The Interim president postponed elections right after polling showed the MAS candidate would easily win the already scheduled elections. She’s also been arresting and terrorizing supporters since the coup.