The top United Nations human rights official today criticized Venezuelan authorities for what he called arbitrary detentions and disproportionate use of force more than two weeks after elections that the opposition says it won.

In a moment Nick Schifren speaks with the main opposition leader who was blocked before

the vote from running.

But first he has a look at President Nicholas Maduro's crackdown and the opposition's resistance.

In downtown Caracas, they let candles to demand democracy.

But also memorialize what they called their lost freedom

and the regime's opponents who've been disappeared since they demanded

President Nicolas Maduro step down for allegedly stealing last month's election.

The government calls the crackdown on its critics, Operation Knock, police officers armed with guns and videos of protesters have arrested more than 2,000.

And launched a social media campaign with music, even Christmas jingles.

Showing off, police detaining what the government calls criminal terrorists.

I tell you people of Venezuela, they tried to rob electoral centers.

I've asked the attorney general to have an iron fist with terrorists with

opposition protesters with violent people. We will not allow them to create a

spiral of violence.

Opposition leader in Mundo Gonzalez is in hiding posting videos online.

But last month with his political patron Maria Corinne

Amachado showed proof heo Machadoo's votes.

We have in our manner.

We have in our hands the tallies that demonstrate our categorical and mathematically irreversible

victory.

Maduro and his allies on the Electoral Council say he won with 51 percent,

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