The Workforce Development Council of Seattle-King County (WDC) Joins Clinton Global Initiative Commitment to Action and Teams with Cengage Learning’s ed2go and Smart Horizons Career Online Education- Nearly 10% of King County residents lack a high school diploma, however a new program being made available by the Workforce Development Council of Seattle-King County (WDC), offers residents the opportunity to earned accredited diplomas and credentialed career certificates. Career Online High School (COHS), part of the world’s first accredited, private online school district, is specifically designed to reengage young people back into the educational system and prepare them for entry into the workforce.