Apart from the injustice from this obvious fascist move, some observations:

• This was done by DHS, not the FBI or local law enforcement. This is also almost certainly intentional, to continue to position the DHS as a law enforcement replacement. They have the budget and most convenient excuse to ignore constitutional protections since they are framed as border enforcement. This signals the DHS and Mullin will continue to expand beyond border enforcement and act with more impunity as Trump’s (i.e., Stephen Miller’s) personal regime enforcers.
• The focus of the charges is nebulous stalking and conspiracy to impede allegations. There’s really no limit to how broadly these can apply to protestors and observers. Because this is happening now…
• The timing further supports a plan to ramp up ICE activity over the summer and fall leading to the midterms. The goals here likely remain to both (a) create a situation where lawful protest instead becomes a basis to invoke the Insurrection Act and station ICE agents and (b) create a test case for detaining opposition figures at key times.
• Newsweek using the terminology “Antifa cells,” a designation implying an organized terrorist group when “Antifa” is of course not an organized group and is really just what the right calls protestors, reminds us that the media will continue to legitimize these actions.