Cold War Warming Up?

In recent months Russia has been warming up the cold war feelings once again. Thought to be too economically unstable to ever pose a real threat again, Mother Russia has proved she is still able to nag the rest of the world, particularly Uncle Sam.
Events such as two bombers flying along the Atlantic coast to Venezuela, aiding Cuba in a supposed space program, building the first Kalashnikov factory in South America and creating a $4 billion dollar contract with Venezuela for the distribution of tanks, fighter jets, attack helicopters, and 100,000 Kalashnikov assault rifles.
So what's going on? Is Russia trying to provoke something? Or is this supposed "great power" just trying to flex it's muscles to prove it is once again a legitimate force to be reckoned with? Washington gets the feeling that the former USSR is simply trying to poke a finger in the US eye with the largest Russian naval influence in the caribbean since the cold war. So should we be worried? Russia and Venezuela relations will defintely be something to keep your eye on as the Cold War seems to be heating up once again.
http://biz.yahoo.com/ap/081016/lt_venezuela_russia_tanks.html?.v=1