Ashton Kutcher may be known for his goofball characters in movies and his pranks on Punk'd, but the actor is also a passionate human rights campaigner and is chairman of the organisation Thorn, which develops software to locate victims of abuse.
Kutcher spoke yesterday at the US Senate Foreign Relations Committee on behalf of Thorn to plead with US lawmakers to put an end to modern slavery and human trafficking.
The star, who is married to actress Mila Kunis and has two children, began by saying: "I'm here today to defend the right to pursue happiness. It's a simple notion. It's bestowed upon all of us by our Constitution.
"Every citizen in this country has the right to pursue it and I believe that is incumbent upon us as citizens of this nation, as Americans, to bestow that right upon others. Upon each other and upon the rest of the world.
"But the right to pursue happiness, for so many, is stripped away. It's raped. It's abused. It's taken by force, fraud, or coercion. It is sold for the momentary happiness of another."
He argued that technology "can be used to enable slavery, but it can also be used to disable slavery", adding: "Can we build the tools that are better than their tools to fight what is happening?"
An emotional Ashton said how through his organisation he had seen things 'no person should ever see', and told a harrowing story about a young Cambodian girl the same age as his daughter.
He said how he has been told to "stick to his day job" as an actor in the past, but added; "We were the last line of defence - an actor and his foundation. That's my day job, and I'm sticking to it."
Watch below, but we warn you, it's pretty heavy stuff.
