[Barnett:] Welcome back. Israel has growing concerns over Russia's military buildup in Syria. The country's been staying out of the Syrian conflict but says its red lines now have the potential of being crossed.
[Church:] There are worries that Russian weaponry could end up in the hands of Hezbollah. Oren Liebermann has more on the story from Jerusalem.
[Oren Liebermann, Cnn International Correspondent:] Israeli F-15 fighter jets maneuvering in the skies over Israel, the American-built fighter jet giving the country a technological and military edge in the region. But now a new presence in the Middle East, the advanced Russian Sukhoi Su-27 in Syria, according to U.S. officials, and other Russian military arms threatening that edge. Satellite pictures of Latakia inside Syria show a rapid buildup of an air force base with lots of Russian military equipment moving in. [On Camera] Netanyahu and Putin, they've talked recently and have visited recently and yet there is a cause for concern and a cause for friction between these countries and these interests.
[Jonathan Spyer, Director, Rubin Center:] Absolutely. It relates to the provision by Russia of weapons systems to some of Israel's most determined enemies. In 2006, it was Russian Kornet missiles that reaped a terrible harvest, so to speak, of Israeli armored vehicles in Southern Lebanon.
[Liebermann:] In Northern Israel, we've seen Israeli infantry and tanks in military exercises. But Israel's policy has been to stay out of the Syrian war, happening right across the Golan frontier. Yet Israel says it has red lines and will not allow advanced military equipment, like Russian S-300 anti-aircraft missiles, to fall into the hands of Hezbollah in Lebanon or other militant groups. Foreign media reports that Israel has, in the past, struck weapons shipments headed for Lebanon. [On Camera] What is Israel's primary concern here with regards to Syria and Hezbollah in Lebanon?
[Spyer:] Israel has been, in the course of the last four years, determined to prevent the provision of certain weapons systems from Syria to Hezbollah. And to achieve that, Israel has required complete air control, mastery of Syria's skies, to operate when and where it wants, anywhere over the skies of Syria.
[Liebermann:] Analyst Jonathan Spyer says Israel and Russia are not on a collision course but with the two militaries so close, he says the two countries will have to work together to ensure a collision won't occur. Oren Lieberman, CNN, Jerusalem.
[Barnett:] Now weather across the Balkans has been calm and quiet for much of the summer, but that is all about to change in the region.
[Church:] Our meteorologist Pedram Javaheri is here to tell us more about what sort of change is in store there.
[Pedram Javaheri, Ams Meteorologist:] Yes, we're watching the storm track really pick up and move farther to the south, meaning more storms across the Balkans and of course the migrant angle something we've touched on so much with all the crossings that have occurred and the weather for the most part has been pretty tranquil but we've seen fatalities continue over that region. So this is a concern now of going into the autumn months and eventually the winter months, as we're a couple days away now as the seasons transition over. So the satellite and the water vapor satellite here really does a good job, guys, because you look at the right corner of your screen across the Balkans, easy to pick up. It's the mid and upper level moisture in the atmosphere shows you where storms are centered. We have some dry air back behind the storm but pretty potent storm system pushing off to the east and producing a strong thunderstorm. And in fact the migrant route's in place. The land route, one of the areas of concern over the next couple days as heavy rainfall cruises over this region. A storm really looks to stall over the area for a couple of days as well. And notice the current wind speeds. Anywhere from 40 to 60 kilometers per hour right over the heart of this region. So any sort of small boats again trying to cross this stretch of water we're talking very choppy situation when it comes to being down across the southeastern corner of Europe. Again the storm meanders this region, bringing in some heavy rainfall in the next couple of days and this pattern continues toward the latter portion of the week with the heaviest rain right across the Greek isles. We're talking upwards of perhaps 200 millimeters in a few spots. And typically in the summer months you're talking about the jet stream well to the north. So the storms track across the northern portion of the continent as we transition into autumn and winter that drops in farther to the south and we're talking about much more active pattern across this region. So your temperature trend across the area going to be cool, around London, going up to about 18 degrees in Prague. A sea-saw battle from the teens as well. But the temperatures again going to cool off towards the latter portion of the week. But want to leave you with this image because we know the 35th Annual Beijing Marathon was taking place on Sunday. The air qualities. Would you guess of course the 175 AQI which is in the unhealthy category. We know of at least six heart attacks and one official even having a heart attack across this region in Beijing. The air quality, when you're running off, and as you guys might know here, as your oxygen intake goes up tenfold when you're running. So often we say stay indoors, but with the marathon it was continued across this region, a lot of injuries. 30,000 people participated.
[Barnett:] Unfortunate. But you know the air is bad.
[Javaheri:] And the air is bad.
[Barnett:] Knock you out.
[Javaheri:] And it's a very big event. So, you know, people ran with masks, as you saw in that image.
[Church:] Yes. My goodness.
[Barnett:] Yes. All right.
[Church:] All right.
[Barnett:] Appreciate the update, Pedram.
[Church:] Thank you, Pedram.
[Javaheri:] Thanks.
[Barnett:] We can report on yet another tragedy in the Mediterranean. Four migrants, all of them risking their lives to make the trip to Europe. We'll get you the newest information on this after the break.
[Church:] And hear how the U.S. is stepping up to help Europe as it grapples with a deepening migrant crisis.