It's quite amazing to read that a bishop in the Real World has performed a public exorcism, as reported by Father Zuhlsdorf.
You might wish to compare this with episodes like this and especially this and this.
Clearly we need to pray for our bishops, who ought to defend Truth as this one has done - and for all of us who are constantly beset by our powerful adversaries. We must also reassure each other, as Bernie did, that "we have allies who are far more powerful" than our enemies.
We us start, as our heroes, with the appropriate antiphon:
Adjutorium nostrum in nomine Domini.
Qui fecit caelum et terram.
Our help is in the name of the Lord.
Who made heaven and earth.
(All Field Agents know what to do when the Dean rings the bells...)