The federal government has released a nearly $1 billion proposal to keep the invasive species out of the Great Lakes. In November, the federal government released a proposal to construct a nearly $1 billion infrastructure project in the state of Illinois to block Asian carp from entering the Great Lakes. The project is the latest in a decades-long battle against the invasive fish, which have already wreaked havoc in waterways up and down the Mississippi watershed. They are now being held out of the Great Lakes by a series of electric barriers in the Chicago area. NewsHour Weekend's Megan Thompson reports.