White House spokesperson Jen Psaki said on Tuesday that the Ukraine crisis is extremely dangerous and that Russia could launch an attack "at any point." #Russia#Ukraine #JenPsaki #JoeBiden #Putin #News #Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en