The Panama Canal turns 100 this week. Officially opened in 1914, the 77-kilometer channel joins the Atlantic and Pacific Ocean at the isthmus of Panama. It made the world smaller, creating a shortcut for cargo ships that ply their trade from east and west. But 100 years later the canal is straining from the demands of expanding global trade. And as Mil Arcega reports, it may also be facing some serious competition as it navigates the next 100 years.