Odd. The link goes to a wordpress site that has no information about the schedule and says tickets are $20. Something is strange. All these famous people in one place and we find out about it just days beforehand? Who is actually organizing this? Are the speeches going to be via Internet? It sounds like D’Souza is going to be there live to answer questions so perhaps this is a promotional event for him?
Just checked the link. It goes to homelandthreats.com and says tickets are $10. There is a contact number at the upper right of the page. Call them if you have concerns.