Criminals. they go straight to hell, ambassador. >> telling the russian ambassador you go straight to hell. richard engel and nbc news correspondent in kyiv and senior international correspondent. what have you been experiencing since this all started? >> reporter: so, we're 14 hours into this and i think we're right now entering what could be an even more dangerous phase than what we have seen in the past. for much of this assault, there have been pinpoint strikes relatively precise strikes by russian air power and russian missiles on to ukrainian military targets. they've targeted control to...