Indeed, it is believed that Issa al-Hindi's reconnaissance team used the tour to case its target.
Mr al-Hindi's arrest seems to be the result of the detention in Pakistan last month of Muhammed Naeem Noor Khan, an alleged al-Qaeda operative who is said to have had maps of Heathrow on his computer.
An American official has been reported as saying that Mr al-Hindi's capture is "significant".Mr al-Hindi is unlikely to be back on the streets soon, but there is concern about the consequences, or lack of them, for most of those caught in such raids.
The asset-freezing order gives his nom de guerre as Abu Bara' al Hindi.
"A decade ago, singers here used to try to reach only the local markets and sang in local dialects," said Salem al Hindi, president of Rotana Music.
The man from Aberdeen, identified in the apparent Isis video as Brother Abu Bara' al Hindi, was born in Bangladesh but grew up in Scotland, the BBC has learned.
One of them, a Briton identified as Abu Dujana al Hindi, says he has a "message to the brothers who have stayed behind".
Mr. Ben-Eliezer met Abdel Razzak al-Yahya, the Palestinian interior minister; Mohammed Dahlan, a security adviser to Yasir Arafat; and Amin al-Hindi, Mr. Arafat's intelligence chief, Palestinian officials said.] The army said the measures "do not apply to medical and humanitarian needs".
Adnan al-Hindi, the leader of the camp's Popular Committee, a grass-roots group representing the Palestine Liberation Organization, said the young musicians had been exploited by the orchestra director, Wafaa Younis, for the purpose of "normalizing" ties with Israel.
In the 2000s, he famously financed a woman from Mecca, Hanadi Zakaria al-Hindi, to become his country's first female pilot.
Gen. Amin al-Hindi, and his deputy, Tarek Abu Rajab.
