John Kennedy actually said...

"I think that is very nice."

"We want to express our congratulations to this young man and also our pride in him."

"I want to express my congratulations and appreciation to the committee, the Attorney General, Mr. Hoover, Mr. Cox, Mr. Guthman, who participated in making this study."

"So we want to congratulate you and tell you that we are very proud to have you here."