joining me now, katie coleman, a financial adviser. one of the things we've heard, a million dollars. you need a million dollars to retire. ? my take is it's never just that easy. what you need to ow important number to achieve your retirement goal is making sure you know what your expenses are. your expenses and what you'll spend in retirement will drive how much you need to have available for you. >> a lot of times people will say, i'm going to need less money. that may not be true. >> what we find is in the early years of retirement, people spend more. because you have more time. when you have time, you spend money. >> are people relying too much on medicare? >> well, while medicare may be good for you for trips to the doctor or not only that, but for hospitalization, it won't cover long term care needs. >> what i mean by, we refer to it as extended care needs. if you need nursing home facilities, assisted living, or home care. that won't be covered. >> the other part of that is social security. it is something that we have seen tak

katie? >> kelly out of manchester, england. thank you very much. for more on this, i want to bring in a counterterrorism expert and undercover operative for the canadian intense service. and evan colemanr time. so they're obviously looking for more of a network as they said. they arrested this man's younger brother. evan, where does the investigation go from here and is there anything that can be done in the uk to prevent this from happening again? they deployed 4,000 soldiers. but how do you stop people who are radicalizing this >> i think the first goal is to make sure there are no other individuals right now in this area or elsewhere in the uk waiting to carry out other attacks. the bomb used here does not seem like it was constructed by someone who lacked experience. and a 22-year-old or a 23-year-old is very unlikely to have the level of experience to build a device like that on his own. did he receive assistance from people in syria, in libya, or others inside the uk, a bombmaker running around the uk preparing other devices? the same thing we saw in paris and belgium recently. the question, how can we stop this or is it possible to stop this? it's extremely challenging. isis ju