Nearly a month after Hamas' deadly attack on Israel, the families of hostages are growing increasingly concerned about the safety of their loved ones. Some hostages' relatives have come to Ottawa to urge the Canadian government to increase its efforts in securing their release. 'The West Block' host Mercedes Stephenson speaks with Chen Zeigen, the son of presumed hostage Vivian Silver, and Irwin Cotler, former Liberal justice minister and former special envoy on combatting anti-Semitism, on efforts to secure the release of the hostages.