But we need to start by focusing on what works . The U.S. has seen a precipitous decline in summer employment -- a 40 % drop over the last 20 years . David Lewis , Peter Singer : For young people of color , summer employment is a source of opportunity ... .
The U.S. has seen a precipitous decline in summer employment -- a 40 % drop over the last 20 years . David Lewis , Peter Singer : For young people of color , summer employment is a source of opportunity ... .