tomos morgan, bbc news, porthcawl. this is 0utside source live from the bbc newsroom. i�*m cash of madeira. the us central bank, the federal reserve, has raised us interest rates again in the past couple of hours, despite the turmoil in the global banking sector. it�*s hiked rates by quarter of 1% at the conclusion of its two—day meeting, let�*s hear what the federal reserve chair, jerome powell, had to say at a press conference a short while ago. we remain strongly committed to