"America loves dogs, but many veterans have an extra bond after serving with canine units on the battlefield and increasingly depending on service dogs back at home.
Now the U.S. Department of Veterans Affairs and some of the nation's largest veterans groups are in a scrap with a government watchdog organization and some in Congress over VA medical research programs that inflict harm on man's best friend in the name of science.
A VA investigation found problems at a Richmond, Virginia, program where researchers do heart surgery on dogs to study the development of cardiac abnormalities.
Techniques include inserting pacemakers and catheters into the hearts of dogs, destroying heart tissue and creating heart attacks by injecting liquid latex into an artery. At the end, dogs are killed and their tissues studied."