Where do you think this information came from. The administration did not release it. The ICE union openly endorsed Trump in the election and along with the Border Patrol agents are reporting these incidents daily.
The piece indicated that the hands of many were tied. Thus, rather than jeopardize their job, they need to leak anonymously to the trustworthy press org or other trustworthy orgs. My point is it takes more than one. ICE employees all over the country need to expose what is happening at as many locations as possible.