(AP) WASHINGTON — Two House Democrats who favor a government insurance plan, a central element of health care legislation passed in their chamber, acknowledged Sunday it might have to be sacrificed as negotiators work out a final agreement with the Senate. Rep. James Clyburn of South Carolina, the No. 3 Democrat in the House and one who had appealed to President Barack Obama not to yield on the public plan, set out conditions for yielding himself. Asked during rounds on the Sunday news shows whether he could vote for a final bill that does not embrace a public plan, Clyburn said: "Yes, sir, I can." Clyburn added: "We want a public option to do basically three things: Create more choice for insurers, create more competition for insurance companies, and to contain costs.