According to an African adage, “ to travel is to see. ” While I had heard about the awful working conditions and treatment of security guards in countries such as South Africa, Malawi and Mozambique, seeing the injustice and poverty workers face at the hands of Group 4 Securicor was more compelling than I had imagined.

I visited Southern Africa as part of a delegation of human rights activists and union leaders to investigate Group 4 ’ s treatment of workers on the continent. The company is one of the largest multinational employers in Africa — bigger than Coca-Cola — and it employs nearly 82,000 employees in 18 nations.

Manuel Cossa is a former guard at the U.S. Embassy in Mozambique. He and 300 other workers were laid off by G4S without receiving severance payments as required by law. He lives on the outskirts of the capital city in a three-room house with no electricity or running water, and must now rely on piecemeal work to support his six children. A proud man who does not want a handout, Manuel only wants to be paid for his hard work and to improve the harsh environment G4S guards encounter every day.

My visit to Southern Africa also showed that workers like Manuel are fighting for what all workers need: to be treated with dignity and respect, and to have a chance at providing a better future for their children. While G4S is a powerful, global corporation with the power to improve the lives of workers and the continent, the company has instead chosen to relegate both to poverty.

Though I left African soil several days ago, I remain inspired by the courage of the G4S guards whose material wealth will never compare to that of their employer, yet — together with broad international support — are standing up against the corporation ’ s arrogance and disregard for their work. They are proof of another African proverb: “ unity is strength, division is weakness. ”

Last night I visited a G4S guard, Manuel Cossa, at his home on the outskirts of Maputo in an area called Luis Cabral. Until recently he had been working at the U.S. Embassy compound until the embassy awarded their contract to another firm.

Manuel is a father of six. Unfortunately, his wife and children weren't at home. There ’ s a school holiday and they had gone to visit relatives in the countryside.

Manuel lived in a home he had built. It looked quite sturdy. He had very few possessions in the three-room house. He lit the house with a candle. I was embarrassed that he might use it all showing me his home. He had one chair but I stood the whole time.

Before he lost his job, he worked 12-hour days. His monthly salary was 1,620 meticais. That's nothing when you consider it has to cover food, school fees, school uniforms and other necessities. Under Mozambique law, when workers are laid off, they're supposed to receive a redundancy payment from their employer to tide them over. Manuel is still waiting for his payment from G4S. How callous ...