21.   It was the first time Schroeder has said this crucial psychological barrier will be breached.

22.   It was the first time Schroeder has said this crucial psychological barrier would be breached.

23.   Riot squads fired tear gas to disperse the protesters after a small group of youths tried to breach the barriers and scuffled with officers.

24.   Riot squads fired tear gas to disperse the protesters early Monday after a small group of youths tried to breach the barriers and scuffled with officers.