While congresscritters expressed outrage at Facebook’s intrusive data grabs during Capitol Hill hearings with Mark Zuckerberg this week, not a peep was heard about the Silicon Valley–Beltway theft ring purloining the personal information and browsing habits of millions of American schoolchildren. It doesn’t take undercover investigative journalists to unmask the massive privacy invasion enabled by educational technology and federal mandates. The kiddie data heist is happening out in the open — with Washington politicians and bureaucrats as brazen co-conspirators. ... Under the guise of customizable assessments, public and private preschools in Colorado experimented with toddlers whose student activities and social/emotional...