It's one thing to double it on paper and another to actually fund and hire the agents. Just as they also gave out community grants to train police officers to work locally to identify illegals and work with ICE, yet when the police apply for the training grants they are met with due silence... both our local police department as well as Maricopa County have been very vocal about this.
They are hiring lotsa agents as you type. Just in case you did not know.