10- to 12-hour documentary will air in 2016
                                
                                
                                    (Newser) -
                                    Ken Burns' next project will wade into the quagmire known as America's "war of lost illusions:" Vietnam. PBS announced the project, already in production, yesterday, reports  Time,  and expects to air it in 2016. Burns mentioned a Vietnam project in 2007 when promoting The War, but said he...