8 ms·
They've also mentioned the removal of lead from paint and gasoline: http://www.freakonomics.com/2007/07/09/lead-and-crime/ http://www.freakonomics.com/2007/07/
by jobu 15y ago
They've also mentioned the removal of lead from paint and gasoline:
http://www.freakonomics.com/2007/07/09/lead-and-crime/ http://www.freakonomics.com/2007/07/09/lead-and-crime/