Why Would Those Be There, Unless....

There IS only ONE reason to have pallets of loose, hand sized bricks on the streets that you know will be sources or riots and violence. Cops won't be throwing bricks. They don't need to. They have superior weaponry. So who might they be for. Certainly the police do not want to see loose, easy to throw bricks in the hands of young anarchists do they? The temptation givin the rush of adrenaline that the protester is under is irresistible. Sounds like a radioactive tracing trap or what the pile of bricks here is telling you.