If I were president...
On the INS:
Beef up patrols, and build a REAL wall between the USA and mexico. Canada is cool, no problem with immigration from there. Instead of border patrols, We'd have tall watch towers along(near, behind) the wall with snipers in them.
Kick all illegals out, or allow them to become neutralized but at the cost of all welfare and SSI rights.
On the ATF:
Push for the repeal of all gun bans with a new ammendment. It would require licensing for owndership of all firearms(class based like NFA, but no tax stamp BS). Registration of firearms. People would legally be able to own whatever they wanted assuming theyre not derranged lunatics(Qualify for ownership permit). Local/state level gun laws would be illegal, and a carry permit instated (carry permits also class based: IE: Handguns, rifles, auto, DD's).
REALLY clamp down and enforce these new laws. Make very strict sentencing for criminals who break these laws.
BTW, I'd strip the ATF of its ability to make its own gun laws on the fly.
Bah, I'm just a mere immigrant(Legal). I'd never get to be president. But I can allways run for VP [:)]