Let's say... You seize full power in a modern country (Western Europe or Northern America) and you want to build a system to eradicate a genetically targeted minority of the population.
Assuming you will never be bothered by international sanctions or foreign intervention, how do you proceed ?
Logistic ? Killing method ? Human ressources ?
Are gaz really that effective ? Wouldn't radiation poisonning be more effective and less expensive since you can use it indefinitely ? Are giant stadium the perfect internment camps ? Could metal container be reused as both storage and transportation ? If it's a country with access to the see ?