It seems to me that he's talking about his own friends, who betray him ("the crippling Judas kiss to christen thee a sinking ship"), or agree with him but then back the ideas with inaction ("the sickening cadence of iron-fists in velvet gloves"). The FBI doesn't need a program to stop his dissent because his friends are doing a fine job of sabatoge by themselves.
It seems to me that he's talking about his own friends, who betray him ("the crippling Judas kiss to christen thee a sinking ship"), or agree with him but then back the ideas with inaction ("the sickening cadence of iron-fists in velvet gloves"). The FBI doesn't need a program to stop his dissent because his friends are doing a fine job of sabatoge by themselves.