The Disney Planet Massacre

Disney Planet became an important part of the story in Season 2 (verify?) when some of the B-Team started a worker uprising among the genetically modified mascot people.

Arrival and non-violent activities
Hermia Scott and Dr. Gloop wanted to take a day off to recuperate after the recent events of the war. They brought along Pax and Bites. Hermia and Gloop rode on rides, watched performances, and generally behaved like appropriate tourists.

Discovery and Infiltration
At some point, Pax discovered that the mascots were in fact genetically modified workers, not people in costumes, and (for reasons I can't remember) snuck into a secret facility where Goofys were "trained". She discovered they were being mind controlled, and sought to free them. Using a computer virus, she mentally freed the mascot people.

The Massacre
Suddenly free from the controlling influence of Disney, mascot people all over Disney Planet began rebelling attacking and taking hostages from among guards, human employees, and tourists. Guards fought back with extreme lethal force. There were numerous deaths.

Escape and war profiteering
Hans Milken Arden had not come along on this trip. He knew that there was a trip planned, but had other business. He found out about the events, and arrived in his fighter to rescue the B-Team. As they flew away, the violence on the ground continued. Hermia, desperate to stabilize the situation, told Hans to "do the thing with the stocks" -- which she maintains meant something like buy Disney Planet and use that corporate control to stabilize the situation. Hans misunderstood, and instead immediately began shorting Disney stock, which made a tremendous amount of money.

Immediate impacts
During the war, this had some negative impact on the public perception of the B-Team's cause, but this was balanced by the fact that both Disney and the B-Team benefited most from these events staying relatively quiet, and both organization's impressive PR capabilities.

Later effects
When running for election as president of The New Republic, Hermia has been faced with questions about her involvement in the massacre.