asia into darkness just after dawn. here is how it looks from india to the islands of the pacific. >> it is on your screens at the momentsust one of the few regions that actually witnessed this total solar eclipse. >> you can see half of the sun, beautiful, beautiful. >> what you are seeing on your screens now are images that we are getting in from china. >> i think it is like really special and it is going to happen only once in my life. >> we are seeing a sliver of the longest total eclipse of the 21st century. >> complete darkness. you can hear the crowd go ballistic, because it is complete darkness, the total solar eclipse. >> it was as dark as night. you could see the stars in the sky. >> it's quite exciting. i've never seen an eclipse before. >> what you can see is a dimming sun barely visible. block the view almost completely. >> i'm at the great wall of china and, wow, this is a solar eclipse. >> it was really, really cool toe see this eclipse. this was a great memory for me. >> to our viewers, you are in "the situation room," happening now, "the situation room" investigation. one of the fbi's most important terr