ANKARA - Turkish Prime Minister Tayyip Erdogan on Thursday repeated his threat to close down social media platforms including Twitter in Turkey and said he did not care about the potential backlash from the international community."We will wipe out all of these," Erdogan told thousands of supporters at a rally in the northwestern province of Bursa."The international community can say this, can say that. I don't care at all. Everyone will see how powerful the Republic of Turkey is," he said.