"people don't even know about italy's colonial history in africa," says paolo barros, a rome city councilmanves what the world needs is a history lesson, not to topple fascist relics. "we'd have to tear down this entire neighborhood," he says. but the time for mere contemplation is over, says ricardo. contemplation is over, says rica he insists on obscuring his identity after his group of activists dumped paint on this statue of a colonialist general. >> we cannot celebrate people that were responsible or massacred against african people. >> reporter: but roman history is bloody and deep. if you start tearing down statues, many here wonder, where do you stop? chris livesay, cbs news, rome. >> yuccas: still ahead on the "cbs weekend news," tesla thinks outside the pickup truck box. g,, again and again. no way. more exercise. more water. and more fiber is the only way to manage it. is it? maybe you think... it's occasional constipation. maybe it's not. it could be a chronic medical condition called ibs-c, and time to say yesss! to linzess. linzess works differently than laxatives. it helps rel