President Barack Obama’s federal budget, announced on Monday, recommends that no new funding be allocated for the construction of a new biosecurity lab in Manhattan, Kan. The budget proposal raised new doubts about the future of the National Bio- and Agro-Defense (NBAF) Facility under construction near Kansas State University.

Congress appropriated $50 million of the $150 million the Obama administration requested for NBAF in the current budget year, which the White house says is insufficient to begin construction. The project would cost an estimated $650 million and would replace an aging facility at Plum Island, N.Y.

“In light of this, the Administration will conduct a comprehensive assessment of the project in 2012, which will consider the cost, safety and any alternatives to the current plan that would reduce costs and ensure safety,” the budget document states.