What was the "field test" for World war 2

Men being placed in mustard gas fields.

Explanation:

ground areas that became saturated with mustard gas. Some wore protective clothing and apparatus but others were left exposed.

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.