the remainder of the antebellum perio, this event stamped the south. slave preachers had greater restrictions put on them. see what happens? what might you be able to do if you move from plantation to plantation, you can creat a plan. then, you can rise up. that was the first thing. so, it limited the ability of slaves to move. it is not like they had a lot of freedom. near the 1850's -- 1855 or 1856 slave preachers do take on more freedoms again. it is so limited in a number of ways. the second thing that happens is that more than 150 slaves, or free people of color, are executed for the rebellion. there are people executed in georgia for the rebellion. they did not participate in this. you see what was happening? it was the fear of antebellum southern plantation owners that slaves could actually rise up. if they could kill their masters, you had to let people understand that you can not do this. there was a repressive response. i said this last week, i will reinforce that here, in the commonwealth of virginia, there were buildings -- bills being put

1990's was exceptional with unusually large advances in information technologies and that the more periorovides a better guy to the future. others ared more optimistic suggesting that technological innovation remains as impressive as ever and history shows it might take some years to fully reap the economic than if it's innovations. i don't know who is right, but i do believe that as a nation we should be pursuing policies to support longer run growth and productivity. policies to strengthen education , to encourage entrepreneurship and innovation and to promote capital investments, both public of private and can also be great benefit. it is also possible that a portion of the relatively weak productivity growth we have seen recently may be the result of the recession itself. as i noted earlier, the increases in investment during the recovery have been modest. in particular, investment in research and development has been relatively weak. financinga lack of may have impaired the ability of people to start new businesses and implement new ideas and technologies. as the economy strengthens