The government doesn't use tax payer money to fund things. They could pay for both. The money is created out of nowhere by just raising the balance of people they're paying. "We can't afford that" is a fiction.

https://www.youtube.com/watch?v=75udjh6hkOs&pp=ygUQdGhlIGRlZmljaXQgbXl0aA%3D%3D