January 23, 2017 2:27 pm Dog Shackled for 15 Years Is Set Free Watch as a dog shackled by a heavy chain in a bare backyard for the last 15 years is finally set free. US & World Videos 3:25 Principal dancer bids farewell to Boston Ballet 12:05 Heart monitors of the future could be peel-and-stick like temporary tattoos 0:30 Speak now: Sebastián Agudelo 4:25 Speak now: Sue O'Connell 4:28 Speak now: Ellie Halvorson