> Both are stories about deleting information that doesn't fit a political agenda.
One set of information is public, one is private.
The information we're discussing is public - this recently released trove of CIA documents and NOAA & NASA climate data for instance. The DHS' internal database of terrorism suspects is private unless used specifically to prosecute individuals for crimes.
If your claim is that the DHS should publicly release data about terrorism suspects, that's another debate, although a spurious one. We've done that before, it was called McCarthyism, and it left an indelible negative mark on the US government. If DHS were to engage in such behavior it would likely be challenged and reversed on 6th amendment grounds.