In one aspect, the invention provides a catalyst for converting diesel type liquid hydrocarbons to methane rich gas. Example embodiments include security parameter zeroization based on a remote security monitor. Secure circuitry may be configured to compare a requested URL with the database to determine if the requested URL corresponds to one of the URLs of the database and to select an appropriate logo stored in the secure memory. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. There is provided a way of producing of variable-data publishing documents for Digital Publishing that rely upon complex document designs containing copy-holes which may be expressed according to a set of options, one of which being non-existence of the copy-hole.