20/20 co-anchor Elizabeth Vargas hasn't been on the air for a few weeks, and now we know why -- she's in rehab for alcohol abuse.
Vargas checked into rehab a couple weeks ago, according to the New York Daily News, and will stay there for a few weeks more. She's expected to return to 20/20 once she dries out.
In a statement, Elizabeth says, "I realized I was becoming increasingly dependent on alcohol. And I feel fortunate to have recognized it for the problem it was becoming... Like so many others, I will deal with this challenge one day at a time."