southwest. the blanket of heavy smoke now stretches all the way to south dakota, iowa and nebraska. and the summer is just getting starting. steve osunsami, abc news, georgia. >> it may feel as hot as a volcano all across this country, but in hawaii, they are dealing with the real thing. spectacular new pictures of a lava lake about 500 feet across, boying and flowing at kilauea, where a fresh eruption began late last month. >>> we turn overseas now to yemen, and the terror threat for the united states. the situation on the ground there, from chaos and al qaeda, is so dangerous, that 100 american military warriors there have been given new orders. and here is martha raddatz, who traveled to yemen just months ago. >> reporter: we saw them ourselves during a resent trip to yemen. american special forces, darting from our cameras, but clearly training yemeni forces to kill or capture al qaeda terrorists. now that effort has been halted. the chaos in yemen is growing, with the president fleeing yemen after an attack. he is now fighting for his life with burns across nearly half his body. just yesterday, diane sawyer asked general david petraeus and robert gate