retaliate against any u.s. government official for testifying before congress including you or any of your colleagues. if you would please rise, raise your right hand i will begin by swearing you in. do you swear or affirm that the testimony you are about to give is the truth, the whole truth, and nothing but the truth so help you god. let the record show the witnesses answered in the affirmative. thank you and you may be seated. the microphones are sensitive so you will need to speak directly into them. without objection your written statements will be made part of the record. with that mr. holmes you are now recognized for your opening statement and when you conclude dr. hill, you will be immediately recognized thereafter for your opening statement. >> thank you, good morning, mr. chairman. ranking member nunes and members of the committee. my name is david holmes.