March 28 saw more angry protests in Mexico's conflicted southern state of Guerrero, as students from the rural college of Ayotzinapa clashed with police in the state capital Chilpancingo at a march demanding the return alive of the 43 abducted students from the school. Cars were set on fire as police attacked the marchers. The 43 students disappeared during protests in the Guerrero town of Iguala last September, and are now believed to have been turned over a murderous narco-gang by corrupt police. The weekend before the Chilpancingo demonstration, family members of some of the 43 missing students held a vigil in New York City's Union Square—one stop on a tour of US cities to raise awareness on their plight and protest Washington's "Drug War" aid to Mexico's brutal and corrupt police forces.

DEA agents in Colombia held sex parties with prostitutes hired by narco-traffickers, according to an investigation by the US Justice Department released March 26. In a series of interviews with DoJ's Office of the Inspector General, former Colombian police officers said that they arranged the parties at government-leased quarters between 2005 and 2008, and also provided protection for the agents' weapons and property during the affairs. The report goes on to detail how several DEA agents were provided money, gifts, and weapons by local drug cartel operatives.

The dizzyingly escalating crisis across the Middle East was ratcheted up several degrees last week as Saudi Arabia and its Gulf State allies intervened in Yemen, launching air-strikes against the Shi'ite rebels that have seized much of the country. Saudi troops are amassing on the border and there are fears that the air campaign, dubbed "Operation Decisive Storm," may soon be followed by a ground invasion. Within Yemen, Sunni tribes and militants in al-Qaeda's orbit are also battling the Shi'ite rebels, known as Houthis. (CNN, Al Jazeera, March 29; Yemen Post, March 22)

Authorities in Colombia are carrying out their biggest manhunt since the campaign that brought down the legendary Pablo Escobar in 1993. Dario Antonio Usuga AKA "Otoniel" is leader of the Urabeños, a blood-drenched paramilitary network which is said to control much of the cocaine trade in Colombia's northern region of Urabá. The hunt, dubbed the "Siege of Urabá," has mobilized over 2,000 soldiers and National Police troops to the jungles and peasant villages of the northern region. Under a new reward just announced by President Juan Manuel Santos, Otoniel now has a $580,000 price on his head, while his associates "El Galivan," "Nicolas" and "Guagua" each have a price of nearly $200,000.

The International Agency for Research on Cancer, an arm of the World Health Organization (WHO), on March 24 officially reclassified the herbicide glyphosate as a cancer threat—citing what it called convincing evidence the chemical produces cancer in lab animals and more limited findings that it may cause a form of lymphoma in humans. Monsanto markets glyphosate as Roundup for use in agriculture worldwide, but the reclassification is especially big news in Colombia—where the government has sprayed more than 4 million acres of land in the past two decades to eradicate coca plantations.

Colombians made history March 8, as tens of thousands took to the streets in cities and towns nationwide—joined by Colombian ex-pats and immigrants in the US, Canada, Europe and elsewhere—to show their support for peace talks between the government and FARC guerillas. The "March for Life" was organized by Bogotá’s ex-mayor Antanas Mockus and was embraced by President Juan Manuel Santos, who joined the march in the capital. Since then, there have been some encouraging signs that the country's multi-decade armed conflict is really coming to an end. (EuroNews, March 9;AP, Colombia Reports, March 8)

In another case of Colombian villagers staging a local uprising in response to militarization of their communities, on March 24 a detachment of some 20 special anti-narcotics agents of the National Police were detained by indigenous peasants at the hamlet of Alto Naya, in the southern region of Cauca. Villagers apparently accused the troops, who were on a coca eradication mission, of entering indigenous lands without community consent. But the local National Police commander said consent had been secured at a meeting with village leaders held in the nearby town of Santander de Quilichao. In any event, police seemingly agreed to call off the eradication mission in order to win the release of the detained troops.

After weeks of escalating tensions along the remote mountain border, a Burmese MiG-29 fighter jet carried out an air-strike on Chinese territory March 13, killing four people working in a sugar-cane field in Yunnan province. Chinese authorities stepped up security along the border and registered a diplomatic protest. Burma, after initially denying everything, issued a statement expressing "deep sorrow" over the deaths. But Beijing says there have been at least three similar incidents of bombs from Burmese government forces falling in Chinese territory in recent weeks, and warned of "decisive" measures if there were any more. This all concerns the fast-escalating war in Burma's northern Shan state, where the rebel army of the Kokang ethnicity has again taken up arms against the government. More than 50,000 people—mostly Kokang—have fled the fighting into Chinese territory since the war was re-ignited earlier this year, and Burma accuses local military commanders in China of allowing the rebels to establish a staging ground in the border zone. (BBC News, March 16; Al Jazeera, March 15; Reuters, IBT, March 14)