this type of stuff, but it's the reality of what's happening now in the world. >> reporter: in pasadena, california, home to the rose parade, law enforcement outlined their new strategy. >> we'll be using a series of police radio cars, staffed with either uniformed officers or deputies, and water barriers create a chicane of sorts. >> reporter: overseas, security is being increased across europe. in some cities, officers are now armed with machine guns. in london, police presence is ramped up around buckingham palace and around the markets. >> yeah, i think it's quite safe. >> reporter: in times square today, support for the police. >> i think they've been doing a great job anyway and just enjoy it like we're enjoying it. >> reporter: part of law enforcement's strategy, a big show of force to create a deterrence and instill confidence in everyone loong tocelebrate. >> that was stephanie gosk reporting for us. coming up, as relations grow chilly between the u.s. a russia, if pr battle is playing