text:  to make a decision go forward and only find out much later that they were wrong and have to be sent back chevron protected them from that and that's gone now the second thing is national uniformity agencies act for the entire country at once all the time in this in this situation we're it's going to be i think fair to say common for courts in different parts of the country to disagree with each other on the same issue regarding agency power so now what is an agency to do in houston they're not allowed to do something but in seattle they are