Make the right to vote based on completion of a term of service in the armed forces of the state and or nation.
I strongly disagree with that. The founders of this country thought that standing peacetime armies were a very bad idea, and I agree with them.
I've been toying with ideas for amendments to the constitution for a while now. Here are my ideas; the language isn't yet formal or refined, but this will give you the idea.
1. Clause 1: No corporation, profitable organization, or agent thereof may lobby an elected official; or contribute monetary funds, or other gifts or services beyond those which are available to the general public.
Clause 2: No elected or appointed official may accept gifts (including services), except from individuals who are friends or family, and could not gain disproportionately from the official's duties. [Badly worded, I know... intended as strict anti-bribery.]
2. Congress may pass no law to serve or benefit corporations above citizens, or to insure or support a corporate organization or business. The terms of copyrights and patents are restricted to not more than 20 years. Copyrights and patents shall be further restricted to apply only to public distribution for commercial purposes.
3. The rights of the people shall have precedence over the rights of public corporations or businesses.
Clause 1: Corporations and business are not guaranteed the same rights as people.
Clause 2: Criminal misconduct or infringement of civil rights by corporations shall result in personal criminal liability.
Clause 3: Corporate organizations have no right to avoid self-incrimination.
4. (Anti-secrecy amendment)
Clause 1. Congress shall be kept informed of all governmental programs which are classified or otherwise not disclosed to the public.
Clause 2. Briefings to congress shall include full disclosure of all program details to at least the entire congressional oversight committee. All political parties which have representation in Congress shall be allowed a member on each oversight committee.
Clause 3. No legal proceedings shall be halted by state secrets or due to classified evidence. Superior or Supreme court judges can subpoena and review any secret material in a closed court. The determination that evidence is a secret of the state shall not prevent timely justice.
Clause 4. No secret evidence may be used in any legal proceeding, nor may secret evidence be introduced without full disclosure to all parties.
5. Clause 1: The presidency is limited to one term not to exceed four years.
Clause 2: Senators are limited to not more than 2 terms in office.
Clause 3: Representatives are limited to not more than 4 terms in office.
6. Possee Comitatus: military force may not be deployed for combat, peacekeeping, policing, or any other armed or non-humanitarian duty within the borders of the United States, except for defense against a military threat from a foreign people or government. [Note: this precludes the use of military weaponry by non-military personnel, i.e. SWAT teams. Military force can be defined as the use of weaponry or equipment not legally available to civilians.]
7. No military force shall be deployed for combat duty outside the United States without a formal and public declaration of war by Congress, passed by 2/3 majority and with clear language describing the cause and purpose for hostilities. Exception may be made to deploy force to secure the persons of American citizens abroad. (I.e., rescue operations, but language must be introduced to make this clear and prevent long-term deployments; perhaps append "and return [the US citizens] home.)
8. Citizens and non-citizen residents are guaranteed the right of privacy; and own their private data and information, and may control the dissemination thereof.
9. All bills or articles introduced in Congress must address only a single subject and purpose. Riders are not allowed.
10. Clause 1: An individual's right to obtain, possess, and openly carry arms, including personal firearms, on public lands or their private property shall not be restricted, infringed, or abridged, except by due process of law for people convicted of violent crimes.
Clause 2: The ownership of personal firearms may not be further taxed or regulated by federal, state, or local governments, and no permit, registration, or special tax may be required by any entity for the purchase, possession, or use of personal firearms, beyond that necessary to ensure that a purchaser is not a convicted felon; however no records may be kept from such a background check.
[Arms include bows, knives, and swords. Personal firearms are any handgun or shoulder-fired weapon, firing non-explosive ballistic projectiles. States may regulate concealed carry on public land and the licensing of fully-automatic weapons. Perhaps also allow for no restriction on magazine capacity.]
11. In the event that a President is uncertain as to the legality of a bill which is delivered to him by Congress, he may present it to the Supreme Court, to ensure the bill for compliance with the Constitution and other federal law. If the Court should find the legislation in violation of the Constitution, the bill is void in it's entirety [but see my amendment #9] and shall be returned to congress with a letter of explanation.
12. Laws and other legal documents should be understandable to reasonable people. In a precedent-setting case where a reasonable person might consider the law ambiguous, no criminal penalty shall be afforded to the accused beyond remedial action. In other words, if the law isn't clear to a reasonable person (and hasn't been made clear by a previous precedent-setting court case), then if you're found guilty of breaking that law you can't be punished for it, beyond corrective action (so, in an example pertinent to this topic, if the law isn't clear about owning fully-automatic weapons, and you have one, they can take it away or modify it to be semi-automatic, but they can't fine you or throw you in prison).
Possibly also expand (via formal and clear definition) terms like "abridge", "infringe", and "restrict." For example, a taxation on certain items may not "abridge" or "infringe" one's right to own the item, but it would be a "restriction."
Other things that would benefit the country include:
Election reform: require a paper trail, use direct election instead of the electoral college, try to move away from the party system and take the money out of elections. I like the range voting idea (or something similar).
Judicial reform: unify the federal district courts, so that federal law is uniformly applied across the country; require Congress to convene an independent, non-partisan panel of legal/constitutional scholars and judges to review and report on legislation which is under consideration.
I like many of the other ideas described here, including: re-write the constitution to be less ambiguous, specific language for nuclear weapons (or chemical/bio weapons), tweaking eminent domain, clarifying the interstate commerce and general welfare clauses, restrict government (and non-gov't) information-gathering and storage of personal data, and a general restriction on bills that may be passed (not just by length, but also subject).