Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Wikileaks co-founder Julian Assange tried to phone the White House to warn them unredacted files were about to be published online, a court has heard.

Julian Assange 'phoned White House to warn of risk to lives'