Joe Biden 's pick to head the Bureau of Alcohol , Tobacco, Firearms and Explosives did not disclose with Congress earlier this year his previous interview with Chinese state-run media, a Wednesday report revealed. David Chipman, a senior policy advisor at the Giffords Law Center to Prevent Gun Violence and former ATF special agent, appeared on China Global Television Network – formerly CCTV – to discuss the Sandy Hook mass shooting in December 2012, Fox News first reported . A YouTube video of the interview, titled 'David Chipman on Connecticut school shooting: What can be done next?', is still up…