As the US honors its veterans, problems pile up at the VA

Questions surrounding the Department of Veterans Affair's leadership have swirled amid growing controversy about the agency's handling and oversight of hospitals dedicated to caring for America's veterans.

A pedestrian walks past the U.S. Department of Veterans Affairs (VA) headquarters in Washington, D.C.
Death & Dishonor: Crisis at the VA   

CNBC first reported on issues within the VA Healthcare System last August, culminating in a documentary "Death & Dishonor: Crisis at the VA" that aired on Veterans Day.

The Department of Veterans Affairs is the second-largest federal agency, with a proposed 2015 budget of over $163 billion—a nearly 6.5 percent increase above 2014 funding levels of more than $152 billion.

The VA is the largest integrated health-care system in the country with over 1,700 hospitals, clinics, community centers and other facilities.

—By CNBC staff