How does the article "Caring for Vets Should Be National Duty," develop the central ideas that the VA is unequipped to deal with its patient load and that it must make it easier for patients to receive care? by describing the complaints against the VA and stating that veterans should not have to beg for proper treatment by describing the types of injuries war veterans have experienced and insisting that Americans must do more fundraising to care for them by providing statistics on the number of veterans unable to receive care and laying out a plan for the VA to increase the number of care providers by providing facts about the type of care veterans should be receiving and giving examples of how the VA has failed to complete their mission