Recent report I read and heard about was them staking out elementary school "graduations." Caused parents to have to flee, which was rather depressing. The kids are likely birthright citizens, but even then, parents are afraid of deportation without representation (at least, according to interviews by KCRW/NPR).
FYI btw, it's like the last week of school here in LA for most districts, so any of these stories are still very plausible.