Google will have to contend with a class-action lawsuit alleging that its Street View cars illegally snooped on private Wi-Fi networks after the US Supreme Court declined this morning to hear a challenge to dismiss the complaint. Google said in 2010 that its Street View cars had accidentally been collecting content sent over unencrypted Wi-Fi networks, explaining that it had stopped the practice as soon as it realized this was happening. Nonetheless, various lawsuits and investigations have popped up in the time since, with Google settling a major interstate investigation a little over a year ago. Beyond that, Google has been caught up in a class-action suit over whether its actions violated the Wiretap Act.