Collaboration for HSINT

What do you think is the largest obstacle or challenge preventing effective multi-agency and inter-governmental collaboration for intelligence support to homeland security operations? 2) What would another large obstacle or challenge be, but this time from a tactical perspective? 3) Lastly, describe at least two solutions or effective frameworks that are being used (or that can be better employed) to overcome these obstacles and ensure effective inter and intra-agency collaboration for intelligence support to the HSE.
Will add some reading below and upload the rest: