NIC ROBERTSON, CNN SENIOR INTERNATIONAL CORRESPONDENT: The people who are working in aviation security, the thousands who check the planes, the thousands who man the different airports around the world, these -- all these people who come close to aircraft perhaps require a higher level of screening. Something he says Israel does already. He acknowledges it's a small country and it's relatively easy to do. But the pervasive feeling here is that there are issues -- potential security issues that are not being tackled adequately by airlines. And although they don't know what the problem with MH-370 was, this is highlighting some of those potential issues, Carol.</s>CAROL COSTELLO, CNN ANCHOR: Nic Robertson reporting live this morning. Thanks so much. Still to come in the NEWSROOM, the search narrows and the mystery deepens. Why was data deleted from the pilot's flight simulator? CNN's Kate Bolduan is in Malaysia's capital. Hi, Kate.</s>KATE BOLDUAN, ANCHOR, CNN'S "NEW DAY": Carol, also ahead, maybe possibly a new more southern focus in this search for the plane. All the latest developments coming to you from Kuala Lumpur, ahead.
Israeli Aviation Security on High Alert