That quote is from Scientists look to 'desensitise' kids to food allergens by Stephen Daniells on the FoodNavigator-USA. com site.
This is, at least, a far more interesting debate than the unfounded fear that computer games, like gory films, cause violent behaviour over time or at least 'desensitise' the young to violence.
The research team also believes that the new, safer peanut could also be used to help desensitise sufferers.
A perennial criticism of violence in films is that it's liable to desensitise the viewer.
I think that government and police are doing these things quite deliberately to desensitise and cower the population.