lawrence seaway. if you took a photograph of a lake like toledo or cleveland or milwaukee in 1911, the port would look chaotic. there would be hundreds of vessels operating out of that port on any given day. it would be different because they would be a wide variety of styles of vessels. in 1911, you still had hundreds of sailing vessels. versus a boat like the schoonmaker, which was operated with steam. we are now in the engine room. this is where the power that is created to move the boat through the water comes from. originally, the schoonmaker had an expansion steam engine. but that technology became supplanted by steam turbines. the old engine was taken out and the new steam turbine system was placed in it. all of this equipment is based on steam turbine technology. except for the engine room telegraph, which stayed the same. judge gregory: it is now the other end of the communication system with the pilothouse. when the captain -- one -- wants the boat to go full ahead, he sends a signal back to

lawrence seaway. if you took a photograph of a lake like toledo or cleveland or milwaukee in 1911, the port would look chaotic. there would be hundreds of vessels operating out of that port on any given day. it would be different because they would be a wide variety of styles of vessels. in 1911, you still had hundreds of sailing vessels. versus a boat like the schoonmaker, which was operated with steam. we are now in the engine room. this is where the power that is created to move the boat through the water comes from. originally, the schoonmaker had an expansion steam engine. but that technology became supplanted by steam turbines. the old engine was taken out and the new steam turbine system was placed in it. all of this equipment is based on steam turbine technology. except for the engine room telegraph, which stayed the same. judge gregory: it is now the other end of the communication system with the pilothouse. when the captain once the boat to go full ahead, he sends a signal back to the engine

lawrence seaway and open up the wellington and allowed the salty's, oceangoing quakers to come in.toledo still a major port city. we have overseas terminals here. and there is a lot that happens on this river in toledo ohio on the Ãbif you don't get around this and you don't see these boats and the ships, you can kind of forget sometimes that we are really a port city and an important port city in the great lakes.>> the c-span city tour is on the road exploring american story. our visit to toledo ohio continues as we next catch up with author Ãnelson in his book on the politics of free speech. >> i think the biggest misconception about the first amendment is that it applies in all situations across the board whether you are talking about private speech, public speech, at work, and something that involves government but the first amendment only applies to government actions. it says congress shall make no law which means somehow or another the state has to be involved for it to be first amendment issue. i think there's definitely a difference between free speech and first amendment speech