By Gavin Jones and Angelo Amante ROME (Reuters) – Italian Prime Minister Giorgia Meloni took aim at the EU’s financial institutions on Thursday, telling the European Central Bank (ECB) to be more careful in the way it communicates and saying the euro zone’s bailout fund serves no useful purpose. During a three-hour, end-year news conference Meloni said the ECB should avoid making “choices that make things worse” for the bloc’s economy, adding her voice to criticism leveled at the bank this month by some of her top ministers. At its last meeting the ECB raised its benchmark interest rate by 50 …