Solution to 5: The Hidden Helpers
The hidden helpers are another way of saying the Secret Service (as hinted by the final sentence: "that's a hidden" instead of "that's a secret"). There is a key word in each paragraph which is the Secret Service codename of a US president or vice president. The number in each paragraph is an index into the last name of the political figure.
1. Sandstorm - Rockefeller (the only Vice President here): F
2. Volunteer - Johnson: O
3. Rawhide - Reagan: R
4. Lancer - Kennedy: D
However, the answer is not Ford. Gerald Ford was another US President, and the answer is his Secret Service codename, Passkey.
PASSKEY