ABL will now undergo flight tests in which the aircraft will fire its high-energy laser, first into an onboard calorimeter, then through its beam control/fire control system.

When the activation tests are complete, ground firings of the laser will occur, followed by flight tests of the entire ABL weapon system.

But Gleevac, too, can be bypassed by further mutations of BCR-ABL which allow the tumour cells to grow in the presence of the drug.