How the first truly continental railroad could change North American trade

Freight trains may soon travel more easily between Canada, the US, and Mexico after Canadian Pacific Railway finalized a deal to buy Kansas City Southern, positioning itself to become the first rail network connecting the three countries.
The agreement, which is valued at $27 billion, comes after a lengthy battle between Canadian Pacific and its rival, Canadian National, which submitted a $30 billion counter-offer to Kansas City Southern in March that was ultimately rejected by a US regulatory panel.