In terms of the timing, I don't have an opinion on why that is, but I think this means we have the opportunity to take a look per chapter at what this is going to mean. For something like the environment, we need to go through it line by line, see what's protected, and notice how weak this chapter is and how little impact this chapter is going to have to protect the environment.
On May 13th, 2016. See this statement in context.