Drupal: BBC weather block

I've had so many calls about this. How can this be? It's only a simple block pulling in an RSS feed. I wonder if some people are trying to use cURL.

This module is running on this site, you can see the weather block on the right hand column.

/*
 * How many jobs would you like to display in the block?
 */
define('HOW_MANY_DAYS', 5);
define('WEATHER_URL', 'http://newsrss.bbc.co.uk/weather/forecast/8/Next3DaysRSS.xml') ;

function weather_block($op = 'list', $delta = 0, $edit = array()) {
	$blocks = array() ;

	switch ($op) {
		case 'list':
			$blocks['weather']['info'] = t('Weather') ;
			break ;

		case 'view':
			switch ($delta) {
				case 'weather':
					$jobs = _weather_fetch() ;
					$blocks['subject'] = null ;
					$blocks['content'] = theme('weather', $jobs);
			}
			break ;
	}

	return $blocks ;
}



function _weather_fetch() {
  $data = @file_get_contents(WEATHER_URL);
  $testfeed = @simplexml_load_string($data);
  if ($testfeed !== FALSE) { // check for valid, well formed XML
  	unset($testfeed);
    $feed = new simplexmlelement($data);
    $howmany = count($feed->channel->item);
    if ($howmany > HOW_MANY_DAYS) $howmany = HOW_MANY_DAYS;
    for ($x = 0; $x < $howmany; $x++) {
      if (strlen($feed->channel->item[$x]->title) > 0 && strlen($feed->channel->item[$x]->link) > 0) {
//        $jobs[] = l($feed->channel->item[$x]->title, $feed->channel->item[$x]->link, array(), null, null, true);
        $ftitle = preg_replace('/^([^:]+)/', '\\1', $feed->channel->item[$x]->title);
      	$jobs[] = $ftitle;
      }
    }
    return $jobs ;
  }
}




function theme_weather($jobs) {
	$output = '' ;
	if (count($jobs)) {
		$output = theme('item_list', $jobs) ;
		
	return $output ;
}