ok, we will go to matt aikins. you have just recently returned from yemen. talk about what you found. >> it is very difficult to get into the country because there's a full on blockade by air, land and see. we had to smuggle ourselves in by boat in the neighboring country of djibouti. once we got out there, we saw country completely paralyzed lack of fuel, food, medicine, no power in most of the cities we visited. there's a constant toll of airstrikes and very heavy fighting in numerous areas of the country. so really, it is mounting humanitarian catastrophe, as you mentioned, an extremely dangerous situation that i think threatens to get worse as time goes on. nermeen: you talk about the saudi blockade. it is because of this blockade there is a humanitarian catastrophe in part because fuel and food supplies can't get in. what was the justification for the blockade and where you traveled in yemen, what did you see its effects in the refugee camps, etc., that you went to? >> the justification the saudi coalition gives is it is preventing deliveries of weapons