Welcome to the Top 10 Videos of 2015 Countdown.

Markets, immigration, bailouts, vaping, urinals,

we covered it all.

At number 10 we have What is Libertarian.

This video gets right to the point about a political stance

that's been getting a lot of attention lately.

Libertarianism isn't just about loving guns and Ron Paul,

it has its roots in a deep, philosophical tradition

called classical liberalism.

Our number nine video is

Should You Be Allowed To Sell Your Kidney

starring Learn Liberty super professor Peter Jaworski.

Peter dropped in on Georgetown University's quad

to see what students thought was permissible to sell.

Number eight, the best explanation

of The Greece Bailout In 90 Seconds

boiled down a super complicated topic

that financial experts and journalists

spend hours explaining

into a simple tale of a college kid and his rich uncle.

I know he screwed up, but look at that face.

Number seven, Let Them In?

is relevant given the current refugee crisis.

Economic studies show that free trade and labor

benefits the native citizens as much as the immigrants.

I bet the food options get better too,

but I don't know if there are economic studies to prove it.

Our number six video asks

Is Offensive Speech Good For Society?

Seems strange, but turns out yeah.

Offensive speech is important

because it challenges us to think about our own beliefs,

and if we stopped others from saying what's on their mind

they could do the same to us.

Five is a real tearjerker.

How CBD Helped A Child With Epilepsy

is about little Sophia who underwent three brain surgeries

and tried many complex treatments for her epilepsy.

There is a safer, natural,

non-intoxicating medication called CBD,

but she wasn't allowed to try it

because of Ohio's marijuana laws.

Coming in at number four is Spider In the Urinal.

Based on a though experiment

by the philosopher Thomas Nagel,

this video raised several interesting questions

like do good intentions justify terrible results,

and is there anything scarier

than being tried in a spider court?

Number three is An Unhealthy Alliance

about how the strange double team

of tobacco companies and anti-smoking activists

are lobbying government to pass laws against vaping.

But tobacco companies don't care about health.

Vaping helps many people quit, which hurts their profits.

Conspiracy!

See? Sometimes the black helicopters are real.

Number two, I Can't Breathe, takes on police brutality.

When we make laws they must be enforced by violence.

Eric Garner was breaking the law,

but he didn't deserve a death sentence.

Limit the number of laws police have to enforce,

and we can have fewer tragic cases like Garner's.

Finally our top video of 2015.

The death penalty may feel like justice,

but what if someone's wrongly convicted

due to a forensic mistake or a corrupt trial.

It happens more often than you think.

Death is irreversible, and governments make mistakes.

That's it for our Top 10 Videos of 2015.

Don't forget to watch the playlist

for the full videos and subscribe to Learn Liberty

to see more videos like this in 2016.

(upbeat music)