WASHINGTON (Reuters) - U.S. President Donald Trump on Friday denounced an attack in London when a blast hit a packed commuter train, and urged authorities and others to take more  proactive  steps such as better policing of internet use by terrorist groups.  Another attack in London by a loser terrorist. These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!  Trump wrote in a post on Twitter.  Loser terrorists must be dealt with in a much tougher manner. The internet is their main recruitment tool which we must cut off & use better!  
Trump denounces attack in London, urges 'proactive' steps