This is the latest news as of August 20th.

"A study authored by Professor David Bassett Jr. from the Department of Kinesiology, Recreation and Sport Studies at the University of Tennessee, Knoxville, and three other researchers was published today in the American Journal of Public Health, concluding that communities with more walkers and cyclists are healthier than those where people must rely on cars to get around."

I'll post more if I find anything else out.