Saudi funding to charities has fallen by 40 percent after the Sept 11 attacks as Muslims fear falling foul of strict US efforts to monitor "terror funding", the head of a leading Saudi charity said this week.Posted on 03 December 2006 @ 17:21 GMTSaleh Wohaibi, secretary-general of the Saudi-based World Assembly of Muslim Youth (WAMY), said total funds collected in the oil-exporting Gulf region do not exceed USD 1 billion a year.