News ‘Replacement theory’ fuels extremists and shooters. Now a top Border Patrol agent is spreading it. May 6, 2022 Will Carless, USA TODAY Comments Off on ‘Replacement theory’ fuels extremists and shooters. Now a top Border Patrol agent is spreading it. Brandon Judd, president of the National Border Patrol Council, repeated a well-known white supremacist trope on Fox News last month.