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If this fails or is n't realistic , document the problems , with specifics and dates . Cable television piracy continues to be a significant problem , with estimates of tens of thousands of illegal systems in operation . Social Security , which gets a lot of attention , is actually the smaller problem , with estimates suggesting that it will grow from around 4 % of GDP today to 8 % a few decades from now . This lead to visibility problems , with goggles being covered in muck , and the drivers were completely soaked by the continual splash from the tires . It was a tremendously intricate and complex problem , with scores of parameters that had to be considered . High-speed monitoring of Internet traffic is an important and challenging problem , with applications to real-time attack detection and mitigation , traffic engineering , etc.