President Obama will travel to Mexico City tomorrow to meet with President Calderon. It's been twelve years since the last visit by a U.S. President to Mexico City, where crime and massive gridlock cause nightmares for the Secret Service. The two leaders have a lot to talk about, but here's a quick look at six things likely to be on the agenda.

1. Drug Violence: No surprises here. Drug-related violence has been all over the news for months, as Mexican authorities continue their attempts to crack down on powerful drug cartels. The two leaders will discuss ways that the U.S. can aid in curbing drug violence. (There is some talk of the U.S. sending Black Hawk helicopters to help, but arrangements are complicated by Mexico's longstanding wariness of U.S. military aid). Obama will probably want to discuss police corruption and judicial reform, both of which impede the government's ability capture and prosecute drug criminals. Calderon is likely to ask Obama to help stem the southward flow of guns and cash. Mexico stepped up the pressure on this front last weekend when its Ambassador to the U.S., Arturo Sarukhan, told CBS's Bob Scheiffer that U.S. guns and cash are fueling Mexico's drug problems. He said that 90% of the weapons seized in Mexico can be traced to the United States and linked the influx of guns to the expiration of the assault weapons ban. Robert Gibbs has indicated that reinstating the contentious assault weapons ban is unlikely, telling reporters Tuesday that "there's a lot on our plate" and that the President has "other priorities". Hmmm - anyone think this conversation might be a little awkward?

2. The Economy: Mexico's economy relies heavily on exports to the U.S, so even though Mexico had limited exposure to sub-prime mortgages, the downturn here is having a serious impact south of the border. The two leaders have already had a chance to talk broadly about the financial crisis and aid for the poor at the G-20 summit in London, but Calderon will likely want to talk about a couple of specific issues. Mexico is concerned about the "Buy America" provision in the stimulus package. Calderon has made clear his belief that a recession is no excuse for protectionism, and so is likely to be disdainful of "Buy America". He's also bound to be worried about the potential bankruptcy of General Motors. GM has four large plants in Mexico, and layoffs could be devastating to local economies.

Our favorites this morning from around the web:

Joe Six Pack on the high seas
Former presidential candidate and current congressman Ron Paul sees a unique Constitutional power -- one that was used most heavily during the Revolutionary period -- to deal with Somali pirates. Let private citizens keep the seas safe in exchange for government "bounty" money. (Politico)

Blago's reality check
NBC has reportedly approached former Illinois Gov. Rod Blagojevich to be the star of a reality show filmed in Costa Rica. The conditions of his impending trial don't allow him to leave the country. But his attorneys are petitioning the court to allow it. (NPR)

Timing it right
Joining a growing list of state leaders, NY Governor David Patterson said Tuesday that the only thing that has been stopping New York from accepting same-sex marriage until now was the political will of leaders. "The timing was always right. It's just who is willing to take that step, and I am," Mr. Paterson said. (Washington Times)

Redefining pot
A marijuana advocacy group in California says its time the government revised its definition of the controversially illegal substance. Accepting that it has pain relieving qualities could be one step toward the drug's eventual decriminalization. (LA Times)

What you'll probably never see from an American politician
Bolivian President Evo Morales ended a hunger strike Tuesday, in protest of term limits that prevent him from running for re-election. After days of chewing cocoa leaves and gathering support from the people, deadlocked lawmakers finally said okay. (Denver Post)