more than 1,000 people have been detained across russia and heavily policed protests. you always feel worried at a time like this. if you have a wife and kids, i wouldn t want to leave them. it comes as occupied areas announce snap referendums on joining the russian state. for critics, a tiny fig leaf to cover a blatant annexation of ukrainian land and an opportunity to halt ukraine s advancing army by warning the western backers to defend the mother land. even the newest bits. translator: this is not a bluff. citizens of russia can be sure our territorial integrity, our independence and freedom will be ensured with the means at our disposal and those who try to blackmail us with nuclear weapons should know the prevailing winds can turn in their direction. reporter: it s a threat ukraine bristoling with u.s. and western arms has already rejected out of hand. officials recruiting the kremlin of throwing more men into the flames of a war it has no chance of winning. but in
facebook at $100 billion. the most valuable company ever at the time of its initial public offering. and more valuable than citi or mcdonald s. millions hoping it will help them boost their bottom lines this morning. dan simon is live at the facebook mothership in menlo park, california, where workers are marking the occasion by working all night long. seriously, dan, what s up with that? it s 2:00 in the morning here and we re wide awake. they re having a hack a thon, an opportunity for facebook employees to basically do what they do best build, design, create. they do this periodically, an interesting public relations move as we re about to begin the trading of the stock. what they want to do is send a message to the world that they built this company on building stuff. so that s what they re doing. they posted pictures to the website showing what s going on inside some of these rooms. in terms of the fundamental challenge facing facebook in the future, it s exactly tha