I think it's still grammatically correct. "withdraw" can be a verb; in this form it would be interpreted to mean "to leave from a place" (e.g., "the troops are

I think it's still grammatically correct. "withdraw" can be a verb; in this form it would be interpreted to mean "to leave from a place" (e.g., "the troops are withdrawing"). However, the title, as currently written, certainly doesn't mean what it was intended to mean. I.e., the way I'm parsing it is "(the DEA is leaving/retreating (to where isn't specified); once there, they're going to ban another plant); this occurred after the Internet got mad."