Secretary Dillon. That is right.
Mr. Rankin. Mr. Chief Justice, I ask leave——
Mr. Dulles. Just for the record, I wonder if he would identify Mr. Hornig. I think we know, but possibly——
Secretary Dillon. Oh, yes; Dr. Hornig is Special Assistant to the President for Science and Technology.
Mr. Rankin. Mr. Chief Justice, I ask leave to give this document the next number in order and offer it in evidence as part of the examination.
The Chairman. It might be admitted.
(The document referred to was marked Commission Exhibit 1053-D for identification, and was received in evidence.)
Mr. Rankin. Mr. Secretary, would you just briefly tell us without getting into any classified matters or matters that are not properly to be revealed because of the effects they might have on the protection of the President, why the Secret Service would need a scientific adviser?
Secretary Dillon. Well, I think this is because they do a number of things. First, they need it in the communications field. There are all sorts of advances there, and they have been assuring or working to assure the security of the communications of the President. In addition there are all sorts of new developments in the form of protective devices that are being developed all the time, better forms of bulletproof glass, better forms of protection of that kind, new types of protection against access. For instance, there is under development, I understand, a sort of a radar type of fence so that you can see if a person comes through a certain area without there being any fence there.
They are developing, working on the development of other protection devices. They have had very substantial progress recently, I understand, in the detection of weapons that someone might be carrying, devices that are more effective. This is something people have tried to develop, I guess, for a long time. Apparently they are having some success. It is that sort of thing that is very necessary.