What is the main topic of this news？A．U.S.security agencies" failure in communication.B．U.

What is the main topic of this news？

A．U.S.security agencies" failure in communication.

B．U.S.security actions to avoid explosion in the airport.

C．President Obama"s criticism on Netherland"s security actions.

D．Netherland"s security devices to examine passengers to America.

请帮忙给出正确答案和分析，谢谢！