Yes, as it is their personal time, and they can do practically whatever they want.
No, as it is subject to interception and may give away confidential information regarding locations and future plans.
YES
DoD military, civilians, and contractors
civilians or nonmilitary....
No there are military contractors and DOD civilians
It is a matter of personal opinion if it is OK for civilians and contractors affiliated with the Army should use official army seals logos on their personal profile on an Internet based site. As long as they do not infringe on copy right laws, it is not illegal.
Service members and their dependents, DOD/GSA civilians, DOD/GSA contractors.
Yes. Military Civilians can be prosecuted under the UCMJ (Uniformed Code of Military Justice) and US Federal and State Criminal Codes.
Idk.
Individuals
http://www.rememberthefallen.org/ This list is composed of military personnel and DoD civilians, and does not include civilian contractors.
The individual is the PR focal group.
The President of the United States or The Secretary of Defense are the only one who can designate who is IMDC personnel. However, the personnel can be contractors or DA civilians.