Dennis Jarvis via Flickr CC / https://flic.kr/p/7jeDS3

Recent public health crises like Ebola and Zika show how fear grabs public and media's attention. But there's another virus potentially be more harmful on a mass scale that's crept under the radar. Today, we'll hear about a virus that's killing off Tilapia by the millions - and what that could mean for our global food supply.

Then, Vladimir Lenin died in 1924 - but you wouldn't know that by looking at his exquisitely preserved corpse. So what's the secret?

A Soviet news reel shows teary mourners shuffling past the body of Vladimir Ilyich Lenin.  The Bolshevik leader and chair of the soviet state in its early years died of a he died of an apparent massive stroke in 1924 at age 54. His embalmed corpse still throngs of visitors to his tomb in Moscow’s Red Square, and was the topic of an annual clinicopathological conference held at the University of Maryland.