Ohana announces Kobi Shabtai as his pick; force has been led by acting commissioner for past two years amid extended political crisis; Katy Perry will head prison service

Defense minister's office says he feels good, will continue to work in isolation until tests come back

Amir Ohana says he is doing so even though Health Ministry rules do not require him to isolate; president, defense minister and IDF chief will not have to quarantine, ministry says

Yaakov Shabtai found to have infection after participating in Thursday memorial for Operation Protective Edge, also attended by Kohavi; unclear if any dignitaries require isolation

Light Blade has a range of up to two kilometers, burns airborne threats out of the sky; several systems developed over past 2 years have failed to eliminate threat