Digging deeper into longitudinal tracking transparency. — Nathan Reitinger, Lilly Hackworth, Annika Hildebrandt, Hazel Murray, Bruce Wen, Michelle Mazurek, and Blase Ur In 2012, Target ramped up its practice of tailored advertising by intently focusing on pregnant women, providing these women with a plethora of baby-themed advertisements. Unremarkable as this may seem today, the practice at the…