. >> reporter: the congressman's opponent, kevin strauss, is a former army ranger and cia intelligence officer. >> there doesn't appear to be an immediate threat from isis, but it's a group where we can't let our guard down because there's no question in my mind that they would attack the u.s. homeland if given the opportunity. >> reporter: of course, washington has been the scene of terrorists and lone wolf attacks before. pennsylvania senator patrick toomey says he feels protected every day. >> security is very expensive. very professional. and keep in mind, you know, we have had attacks. we've had anthrax attacks, ricin attacks, we've had shooters. >> reporter: and none of those attacks were very successful. the senator also adding that the secret service and capitol police are more than capable of stopping any threat. live in bucks county, randy gyllenhaal, nbc 10 news. >> thank you, randy. >>> frightening video of a robbery in progress inside a mom and pop grocery store in philadelphia's fairhill section. take a look. watch the suspect walk up to a counter, point the gun at the em