Workers would probably have been less inclined to support them if their protests had met with reasoned discussion rather than tear gas.

Soldiers were instructed in the use of deadly gases and then exposed to tear gas.

Certain lachrymatory agents are often used by police to force compliance, most notably tear gas.

Police ultimately resorted to tear gas to break up the crowd.

During this time, the soldiers were instructed in the use of deadly gases and then exposed to tear gas.

While at first violence was contained to tear gas and rocks, the shooting started shortly thereafter.

"But how can tear gas come from a gun?"

"They had to tear gas the place to get him out."

Ryan exposes his men to tear gas to prepare them for the harsh conditions of battle.

To help matters, the soldiers were instructed in the use of deadly gases and then exposed to tear gas.