(ANSA-AFP) - ROME, APR 2 - Donald Trump's tariffs are a "profound error" for which a "compact, calm, determined response" is needed from Europe, President Sergio Mattarella, said in meeting Estonian President Alar Karis at the Quirinale presidential palace in Rome on Wednesday. Trump is set to announced his reciprocal global tariffs at four o'clock Washington time Wednesday, 10 o'clock at night in Rome. (ANSA-AFP).