said he shouts as he is taking his arm back to pound hammer and and the bolt goes through isaac mckinsey's. a horrible tragedy. what is interesting about isaac mckenzie is he went to court to demand payment for this accident $10,000. the court said yes. the company was responsible for this injury. but the court said you'll lost one eye so your life will be ok so we will only award $500. isaac mckenzie got a lawyer and took all the way to the supreme court of the canal zone which didn't give him $10,000 but gave him a pretty hefty award for young west indian man finding that the company was responsible for the damages. a story like that about isaac mackenzie gave me a way to understand the experience of the west indian workers. they tended to be such a tough group to trace because they weren't top officials. they were not writing reports. they were often the most silent but cases like that help me see that west indians did strategizing. they did find ways to mobilize and use whatever resources they could to achieve there end. >> host: who ran the canal zone. was the authority? >> the united