Officials have pointed to safety as a key reason for the need to expand the highway. Yet, in 2010, state officials raised speed limits to 70 mph along much of I-81, a move that likely made the road more dangerous.
It's the first of nine installments! This edition focuses on North Carolina’s plan to complete the southern half of a loop highway around Raleigh. It's a boondoggle with epic environmental repercussions.