house weighing new options in ukraine to try to dissuade the russian president vladimir putin for instance saiding. cnn s jim sciutto part of the reporting team on this. what have you been learning? reporter: what we re learning is the white house, the biden administration, now considering additional military support to ukraine with really two intentions here, one, to raise the cost for russian president vladimir putin should he choose to invade ukraine, make it costlier for russian military forces, but, two, as well, to prepare for the possibility of supporting the ukranian military for a long, sustained russian military operation. what is involved? what kind of military options are we talking about? we re talking about further ammunition, further anti-tank weapons known as javelin missiles. they are armor-piercing missiles. other options include mortars and anti-aircraft missile systems which we should note would likely come from the u.s. but from nato al us.