The air tastes like bleach and burning hair long before you actually see the blue-and-white shields of the federal police.
It starts at the back of the throat. A sudden, metallic dryness. Then the eyes begin to water, stinging as if someone has thrown fine glass dust into your face. By the time the acrid white fog rolls around the corner of Congress, past the stone monuments and the jacaranda trees, panic has already done its work. People are running. Mothers are dragging children by the wrists, coughing into the fabric of their sweaters. Elderly men, clutching placards demanding pension adjustments, stumble against the curbs, their breathing shallow and ragged. Learn more on a related subject: this related article.
This is the reality of modern civil unrest in Argentina. When economic policy collides with empty kitchen cupboards, the state answers not with negotiation, but with aerosolized chemical agents.
To understand why police in Argentina use tear gas to stop protesters, you have to look past the cable news clips of scattering crowds and burning trash cans. You have to look at the ledger. Additional journalism by TIME highlights related perspectives on this issue.
Inflation in the country has historically danced on the edge of a razor, but recent months have carved deep, bleeding wounds into the middle and working classes. Utility bills have spiked by hundreds of percent. Supermarket aisles tell a quiet story of survival: fewer items in carts, more calculators clicking in the hands of pensioners trying to figure out if they can afford both medication and beef. When a government implements sweeping austerity measures—slashing subsidies, freezing public sector hiring, and deregulating prices—it inevitably strikes a nerve raw enough to bring people out onto the pavement.
And they do come out. Day after day.
They bring pots and pans to bang together, an old Argentine tradition known as the cacerolazo. They bring homemade banners written in shaky black marker. They bring a profound, exhausted fury.
Enter the security apparatus.
Under the current administration led by President Javier Milei, a strict "anti-picket" protocol has become the iron law of the streets. The core philosophy of this doctrine is simple: public thoroughfares belong to transit, not to protest. If a demonstration blocks a major avenue, the state asserts its right—and its duty—to clear the path, immediately and forcefully.
Tear gas is the weapon of choice for this clearance.
Chemically speaking, the agents deployed are typically formulations like CS gas, or 2-chlorobenzalmalononitrile. To call it "gas" is slightly misleading; it is actually a cloud of micro-powder dispersed by a pyrotechnic charge. When it hits moisture—sweat, tears, saliva—it hydrolyzes, creating hydrochloric acid on a microscopic scale. It stimulates the nerve endings of the cornea, blinding you temporarily. It triggers the mucous membranes in your respiratory tract to flood with fluid, making you feel as though you are drowning in your own lungs.
It is designed to break the will without breaking bones. Yet, in practice, it achieves its psychological objective by inflicting widespread physical misery indiscriminately.
Consider what happens in the crossfire.
It is not just the seasoned political activists wearing vinegar-soaked bandanas who catch the spray. It is the vendor selling roasted peanuts on the corner. It is the journalist trying to stream the event on a smartphone. It is the neighborhood cat darting out from an alleyway, rubbing its paws frantically over its face.
When the canisters arc through the humid air with a sharp thump, they do not distinguish between a violent agitator throwing cobblestones and a grandmother holding a sign that reads Bread is too expensive.
Critics of the protocol argue that this heavy-handed approach violates fundamental constitutional rights to free assembly and petition. They point to international human rights standards, which dictate that crowd control agents should only be used as a last resort when there is imminent threat of widespread violence, and that their deployment must be proportional.
Yet the government views the dynamic through an entirely different lens. Officials argue that blockades inflict economic violence on millions of commuters who cannot get to work, and that the state had lost control of the streets to perpetual, extortionate disruptions. To them, the chemical fog is not an act of repression; it is the restoration of order. It is the visible enforcement of a mandate delivered at the ballot box—a mandate to fix a broken economy, no matter how bitter the medicine.
The smoke eventually clears. The wind sweeps the residue down the grand avenues, past the cafes where tourists sip coffee and pretend not to notice the smell of chlorine in the breeze.
The protesters retreat, coughing, only to regroup a week later. The police reload their launchers. The economic indicators tick upward on Bloomberg terminals while real families calculate how many days of the month they can afford to eat chicken instead of polenta.
In the end, the tear gas does not solve the underlying crisis. It merely buys time. It pushes the anger back into the neighborhoods, down into the subways, and behind closed doors, where the air is still heavy, and the silence is waiting to break.
