A few more details on the British Muslims who were just arrested. From [1] AP:

LONDON - Eight men accused of plotting to commit murder and cause mayhem with radioactive materials, toxic gases, chemicals or explosives appeared in court Wednesday in a case linked to a U.S. terror alert this month.

The defendants included an alleged senior al-Qaida operative also charged with scouting prominent financial targets for terror attacks in the United States - including the New York Stock Exchange, the World Bank and the International Monetary Fund.

Prosecution lawyer Sue Hemming said the eight suspects were motivated by "a strong and deeply held ideology" and were willing to carry out extreme acts. She said police have about a hundred computers and thousands of files to examine as part of what promises to be a long and complex investigation.

"We've only hit the tip of the iceberg as far as a lot of this evidence goes," she told the high security Belmarsh Court in south London.