hamas rockets flying into israel. israel moving forward slowly, steadily, now not only in the northern parts of the gaza strip but also in the south. heavy fighting between israeli ground troops and hamas fighters in both of those areas. at the same time, all eyes reason the diplomatic negotiations, hoping for a truce, krystal. >> all right. thank you so much, martin. joining us now with more on the crisis, stephen cook, senior fellow from middle eastern studies at the counsel on foreign relations. stephen, let's start with those flight cancellations. what sort of an impact does that have on the israeli psyche and the way they're viewing this conflict? >> well, as martin fletcher pointed out, the israelis immediated responded to say this is a reward for terror. of course, if i was holding a ticket on one of those airlines, i'd be happy they were taking precautions to keep me safe. this is the height of the israeli tourist season, so it's likely to have an impact on them. but it is also likely to have an impact on the battlefield.