Arunansu Dasgupta May I take this opportunity to thank you for the illuminating article. No organizer would like to tell their patrons” Please do not come to our event S ”. Under the circumstances of different place different country and different rules of the land GSCA Kallol Dallas and many other place s are compelled to restrict the number attendee. It is very unfortunate but until we can find a better solution organizations will have no other choice. Hopefully with the time angry arguments will be replaced by logical thinking and constructive proposal .