18 USC 111 states in part:
"(a)In General.—Whoever—
(1)forcibly assaults, resists, opposes, impedes, intimidates, or interferes with any person designated in section 1114 of this title while engaged in or on account of the performance of official duties;............"
Courts have ruled that force or the legitimate threat of force is a necessary element of this crime.
https://www.justice.gov/archives/jm/criminal-resource-manual-1565-forcible-act-required-18-usc-111-application-statute-threats
Some in the current administration (and previous ones) have attempted to suggest that any interference with official duties, no matter how minor is a violation.
https://www.cato.org/blog/dhs-policy-threatening-arresting-ice-observers-violates-their-rights
Examples of some things the government has portrayed as criminal are: following agents, using whistles or horns to announce agent's presence, shouting at agents, calls to require agents to operate unmasked and to identify themselves, recording agent's activity etc.
Other actions that might be more reasonably considered obstructing are: Creating an effective roadblock, surrounding agents to block their movement, threats of physical assault, acts of assault and battery etc.
It is my opinion that in order to be obstruction the action must be something closer to the second list.
It is my opinion that horn honking, blowing a whistle, shouting, recording, or being an overall nuisance is generally not a crime.
Making the job of government agents more difficult and annoying is not a crime. Those things can be legitimate forms of protest and civil disobedience.
A few examples of when I think the line is generally crossed: When actual force or the threat thereof is used against another. When someone commits assault or battery. When an effective roadblock is created. When agents are physically surrounded and constrained.
Where do you feel the line is crossed? Is being a nuisance criminal obstruction?
Side note:
I respectfully request that in this thread everyone try to discuss the question from a legal/societal/philosophical standpoint. Please try to refrain from partisan politics or "this group says that" or "that group does this" type comments. Please help keep this thread narrow and focused.