Yup, NOT anti-austerity protestors here, but just the opposite; there is significant component of middle-class protest against government spending fueling inflation (& the main complaint of corruption suggests many might not like where that government spending is ending up):

Argentina protests: up to half a million rally against Fernández de Kirchner
Rowdy demonstrations against corruption mark escalation of opposition to President Cristina Fernández de Kirchner
By Uki Goni in Buenos Aires and Jonathan Watts, Latin America correspondent
guardian.co.uk, 9 November 2012

The broad avenues of Buenos Aires were crowded on Thursday night by Argentina's biggest and noisiest anti-government demonstration in a decade, as hundreds of thousands of protesters marched or banged pots to express frustration at President Cristina Fernández de Kirchner.

After a smaller rally in September, the noisy but peaceful protest – estimated at between 250,000 to 500,000 people – marks an escalation of opposition to the Argentinian leader, particularly among a middle class that is upset at inflation, corruption, media controls and suggestions Fernández may want to amend the constitution so she can serve a third term.

Congregating around the landmark obelisk in the centre of the capital, protesters carried handmade signs demanding "Stop corruption" and "No Re-election" while they chanted: "This is for Cristina who is watching us on TV." Tens of thousands of others joined a cacerolazo (casserole) demonstration outside the presidential palace, beating kitchen utensils so loudly their clamour cannot have been ignored inside.

Word of the demonstration spread through social networks. Many organisers remain anonymous, but Mariana Torres, administrator of the Facebook page El Anti-K, one of the most active in calling for the rally, said she was delighted: "It was a true feast for democracy."

There was no single cause of discontent. Many in the middle class are angry at the highest inflation in a decade, estimated at a yearly 25% by private economists, currency controls that have created a black market in dollars, and one of the slowest economic growth rates in Latin America [....]

Al Jazeera on-site 2.3 minute video report, at protest, interviews some on the street, and a pollster, stresses that it's a leaderless protest movement:

http://www.youtube.com/watch?v=FakxAEJFacw

Argentina voting age lowered from 18 to 16
BBC News, 1 November 2012

Argentina's Congress has approved a law to lower the voting age to 16, in a move that will take effect for key mid-term elections next year.

President Cristina Fernandez has courted the youth vote and critics say the change is designed to boost her party's chances in the 2013 polls.

Supporters of the move say it will widen political participation.

Voting is obligatory in Argentina for people aged 18 to 70, but will be optional for those aged 16 and 17.

The long and bitter session saw deputies trade accusations and most of the opposition walk out before the measure was put to the vote.[....]