NPR:

“The Salahis’ testimony is important to explain how a couple circumvented layers of security at the White House on the evening of a state dinner without causing alarm,” Democratic Rep. Bennie Thompson, the committee chairman, said in a statement released by his committee last night. “If the Salahis are absent from tomorrow’s hearing, the committee is prepared to move forward with subpoenas to compel their appearance.”

Subpoena? Please. What Thompson should do is simply revoke the invitation of the Salahis to testify, then they will show up….er “crash” the hearing.