11.   But the PRI also has had to fight to keep its own deputies from breaking ranks on controversial issues such as the value-added tax, or deserting altogether.

12.   But the PRI also has to fight to keep its own deputies from breaking ranks on controversial issues such as the value-added tax, or deserting altogether.

13.   Scientists who had any doubts about their work could have been killed for breaking ranks, van Rensburg claimed.

14.   The measure would allow the factions to prevent their members from breaking ranks.