If you’re headed past Union Station today, or through it for travel purposes, don’t get too freaked out by the extra police presence. Though, frankly, in this town? There’d have to be a whole awful lot of additional police for me to notice. So, it’s possible it won’t even hit a noticeable threshold of additional policing, but be aware, there is that possibility. It’s all part of a counter-terrorism exercise headed up by Amtrak police.