Being homeless has been a growing concern for many decades and keeps growing. How does one define homeless? There are a few varying definitions because of how someone can be accounted for. The main definition is that of someone who lacks a fixed, regular, and adequate nighttime residence.
HUD (http://www.hud.gov/) has devoted a whole section to those that are Homeless. Sure, most won't have access to these types of sites, but we can certainly read up on them and educate ourselves. Why? One might just never know what could happen to you and your family. One example could be loss of job over night that would possibly leave you with monthly mortgage payments that you could not make. Which would lead to foreclosure and then no place to live. One reason why they can't put a good estimate together is that there are those that stay with family in times of crisis.
Awareness...... There is also the National Coalition for the Homeless (NCH). The NCH was founded in 1982, is a national network of people who are currently experiencing or who have experienced homelessness, activists and advocates, community-based and faith-based service providers, and others committed to a single mission. That mission, our common bond, is to end homelessness. This insert was taken from http://www.nationalhomeless.org/index.html.
Summary : Many of us might not be able to help at this time, but we can certainly read up on it and educate ourselves. Just between HUD's dedicated page to homelessness and the NCH web page, there is a lot of useful information to make more of us aware of the services out there for those that are homeless.
Overall, shouldn't we be taking care of our own first? Instead of worrying about others overseas.