the milita finally making progress in iraqaq taking out jihadi john, the most visible leder ofisis. but this, again, the president was very clear, we don't know who was behind this attack. the real fear,, this is isis once agaiain, reaching beyond the borders of syria. >> and world leaders, including president obama, scheduled to convene in paris later this month for a climate change conference. >> 120 heads of state, more than 120 heads of state scheduled to convene in paris for this large conference on climate change. the president's plan is to be in pas for two nights, attending that conference. of course now, with the borders shut down, state of emergency, many questions about that conference. >> and american airlines are monitoring the situation. the airport is currently open, but they're holding remaing departures to paris so they can get additional information. and pierre thomas, the attack in egypt, greater concerns about air travel and gaps in the tsa system? >> absolutely. officials had been focused on airports because they know it's a concern. and police saying they are g