Yeah, nice Fay Wray, Kara.

Not to tell you your business, scientists, but if mysterious strangers show up in the middle of the night to "help" you with the giant-ass robot you built for peaceful purposes, they probably don't have the best of intentions. From 1972, Adventure Comics #422, "Pawn of Peace!" Written by Steve Skeates, pencils by Mike Sekowsky, inks by Bob Oksner.

Aliens disguise themselves as humans, to hoodwink a scientist that built a rather large and ominious peacekeeping robot: the damn thing didn't work, so I wonder how much the aliens had to do for it: it might just be an art piece for all we know. The aliens seem like they've got a plan but are also really enjoying their dickery; meanwhile, Supergirl is just trying to get to work on time, man. She was already late because she...sigh...stopped to look at a dress; and the robot seems to do a lot of damage, but Kara still worried she won't get to punch in before lunch. Priorities, Kara!

The robot gives her a bit of hassle, and she's grabbed for a bit: the Air Force shoots a few missiles at it, figuring they couldn't hurt Supergirl anyway, even if she was stuck. The scientist tries to make up for being duped by dropping from a helicopter onto the robot to disable its computer; which was pretty daring, except he's squashed like a bug. Supergirl figures out how to disrupt its circuitry with her x-ray vision and disables it; then after a couple pictures zips into the office, where she has to give a sick excuse that even her cousin wouldn't have been able to sell; while elsewhere the aliens disguise themselves again, to help a Russian scientist with his non-functional peacekeeping robot...I don't know if they returned, but honestly I kinda doubt it.

Also this issue: a Vigilante story, "Rodeo of Death!" Written by Bill Meredith, art by Gray Morrow. A publicity tour for some black cowboys is plagued by racist attacks; Vigilante helps stop the masked creeps, but not without cost.