The billion-dollar defamation suit against ABC over its coverage of lean, finely textured beef, or “pink slime” as ABC called it, began this week in a South Dakota courtroom.

In the suit, Beef Products Incorporated (BPI) claims ABC’s coverage misled consumers into believing the product is unsafe, according to the New York Times.

ABC claims each broadcast on the product included a statement that the U.S. Department of Agriculture (USDA) deems the product safe to eat.

After ABC’s segments aired, some grocery stores reportedly stopped carrying the product, and sales of lean, finely textured beef dropped three million pounds per week.

The company’s revenues dropped from more than $650 million per year to about $130 million per year, according to Reuters, prompting BPI to close three of its plants and lay off more than 700 employees.

The South Dakota company filed suit in 2012, originally naming ABC News, anchor Diane Sawyer, reporters Jim Avila and David Kerley and USDA microbiologist Gerald Zirnstein.

Zirnstein was named in the suit for reportedly first using the term “pink slime” to describe lean, finely textured beef after a tour of a BPI facility.

A South Dakota judge removed Sawyer, host of ABC World News Tonight, from the suit in March 2017.

Lean, finely textured beef is “a low-fat product made from chunks of beef, including trimmings, and exposed to tiny bursts of ammonium hydroxide to kill E. Coli and other dangerous contaminants,” according to Reuters.

It’s frequently used in fast food, school lunches and was sold in grocery stores across the nation.

Due to a South Dakota statute designed to protect farmers in South Dakota, if BPI wins, the company could be awarded three times the damages they claim were caused, but first, they must prove ABC spread information they knew was false. They must also prove the network stated or implied, “that an agricultural food product is not safe for consumption by the public,” Reuters reports.

The trial started Wednesday with jury selection. It is expected to last through July.